As with other construction workers, employment of plumbers, pipefitters, and steamfitters is sensitive to fluctuations in the economy. On the one hand, workers may experience periods of unemployment when the overall level of construction falls. On the other hand, shortages of workers may occur in some areas during peak periods of building activity.

As with other construction workers, employment of plumbers, pipefitters, and steamfitters is sensitive to fluctuations in the economy. On the one hand, workers may experience periods of unemployment when the overall level of construction falls. On the other hand, shortages of workers may occur in some areas during peak periods of building activity.
With all the freezing weather our city has had, my dad had a problem with his water pipes and I told him to call BL plumbing service. From the first phone call he made, the company gave him the most remarkable customer service. The dispatcher promptly made an appointment for him and within a couple of hours 2 workers were at his home working on the problem and fixing his pipes! The workers were very kind, helpful and extremely courteous to my dad. Not only was the work done quickly, but also, the cost of the repair was more than fair. I am so grateful for the service that was given to my dad and I will highly recommend this company to anyone needing plumbing work.
Gilberto from Elek Plumbing was 'the big three': he was on time, he was highly professional, and he really knows his stuff. He told me what he was doing and why every step of the way, and the biggest treat for me was that he encouraged my curiosity and didn't mind all my questions about how things worked. When issues with plumbing arise in the future, I certainly hope Elek sends Gil to answer my call. Both he and the scheduler were very clear about what I should expect in terms of the work and the cost and I thank them both!read more
Hi Ginger, We're sorry you had this experience with a plumber in our network. Have you left the review for the company? We encourage homeowners to share their experiences so others have an honest idea of the company they are hiring. If you would like to speak with a rep regarding your concerns please reach out to [email protected] If you have a review you would like to submit please send it to [email protected] or visit this link: http://www.homeadvisor.com/write-a-review/. -HASupport
If you’re looking for a plumber in Des Moines, then you need to make sure that you receive quality customer service at all times. This means courteousness and a friendly demeanor, it means arriving on time and leaving no mess behind. It should not matter whether you’re having a routine check–up on your water heater or a comprehensive whole–house repiping, you and your home should always be treated with respect. In addition to a great reputation for customer service, you may also want to make sure that your plumber backs up his work with a solid satisfaction guarantee. At Golden Rule Plumbing, Heating & Cooling, we offer a 100% satisfaction guarantee as well as upfront pricing so that we can go over exactly what you’ll be paying before we even get started.
Disclaimer: Plumbers Today is a free service that connects users with plumbers in their area. All contractors are independent and are in no way affiliated with Plumbers Today. Plumbers Today can neither endorse nor guarantee the quality of any work performed. It is the responsibility of each user to vet the contractor that he or she hires, and to confirm that the contractor meets all licensing and insurance requirements in that jurisdiction.

Sometimes you might need your sewer and drain lines inspected. For instance, if your sewage is backed up, then you probably want to determine what the cause is. In instances where we can't physically get to the problem to see what it is, we can use a sewer video camera to go down into your lines and take a video showing us what's the issue then. That way we'll know the appropriate way to deal with it. 
Most recently they sent Mike out to snake a kitchen sink drain for us. Mike got here earlier than quoted and got the work done quickly so I could get out of work on time and pick up my little boy from daycare. I called them back to give a compliment about Mike. I like to let them know when they do a good job. Mike was really a great guy. I have nothing but good things to say about them. When we have an issue we call them. Their techs are personable and always make the residents laugh. They are clean and well prepared. It is a real stand up operation.
It’s not much ago that we did complete bathroom installation with interpod prefabricated modular bathrooms for construction site. The client was amazed with our indepth cost analysis, acute attention for detail ad excellent workmanship. The perfection with which the prefabricated bathrooms were installed helped the client in launching the project to the market quickly and get a better return on investment (ROI).
Neves Plumbing Service, LLC is your answer to all your plumbing and heating needs. Whether you are a homeowner looking to fix your leaking faucet, malfunctioning heating system, hot water supply, etc. or a contractor looking to start your next project, our professional and reliable team can ensure a higher level of satisfaction for all of your plumbing and heating needs.
Also, realize that some supply stores you may find online or in a directory are wholesale only and will only sell you supplies if you have a resale or contractor's license. Pretty important to know if you have to shut the water off at the main valve for the house for a repair and THEN find out you can't get the replacement part at Home Depot after you've already taken the fixture apart. Shower valves are infamous for this, since the older ones don't have shutoffs at the valve, which is in the wall, so you can't see it until you're in there - and you can't get in there until you've shut off the water at the main.

My Mom is in her eightys. I called a plumber in Aug 2012, replaced the McDonnell/Miller LWCO low water cut off 47/2 $675.. Same plumber was called Jan 8,2013 back. He trouble shoot the problem and replaced the same unit, yet I still have the problem. After the heat come on for about 15 mins/ goes off.the pipes connecting to the MM LOCO the vibrating starts, shakes, and makes a loud noise. The boiler is steam, I know it's old. Do I call the same plumber or call someone differently?
We have been around for nearly a century! Established in 1920, Bud’s Plumbing & Repair Service knows the exact needs of Evansville residents and commercial property managers. We know what products work best with certain properties, which solutions will give you the best value for your money, and what you can do to prevent the same problem from recurring.
Sinks can also be mounted from above or below the counter, or vanity, and homeowners have the option to put in a contemporary vessel sink, which sits on top of the counter. Costs range from less than $100 for a basic, porcelain drop-in or pedestal sink, to several hundred dollars or more for a cast iron vessel sink. Install tends to run between $150 to $200 though it can cost more depending on who you hire and the complexity of the job.
Most plumbers wont mess with the septic tank. We deal mostly with components inside the house. Did you have a vent pipe in the yard (often looks like a candy cane made of PVC) before the repair but not after? If all he did was replace the line it shouldn't cause a smell inside the house. All plumbing fixtures inside the house should have properly functioning traps. Those traps would create and maintain a water seal against the sewer gases. You should have at least one vent through the roof to equalize pressures within the drainage system. This prevents positive pressures within the system (caused by fixtures discharging into the lines, ie toilet flush) from pushing gas out through the traps, and negative pressures (the waste in line will pull air behind it like your finger over the end of a straw) from sucking water out of the traps.
Baker Brothers Plumbing offers both residential and commercial plumbing services including tank and tankless water heater replacement and maintenance; drain and sewer repairs or replacement; drain cleaning, clearing and jetting; pipe lining and pipe replacement; repipe; gas line repair; slab leak detection and slab leak repair; bathroom and kitchen faucet installation; garbage disposal repair and installation; and most general plumbing repairs in most or all of the following Dallas, TX ZIP Codes: 75229, 75230, 75225, 75220, 75209, 75219, 75247, 75212, 75235, 75201, 75207, 75248, 75287, 75252, 75244, 75254, 75240, 75251, 75248-1713, 75214, 75228, 75243, 75238, 75218, 75206, 75231, 75204, 75226, 75246, 75227, 75208, 75217, 75232, 75224, 75211, 75241, 75215, 75233, 75253, 75216, 75223, 75237, 75249, 75203, 75210
Plumber Chandler AZ provide the best plumbers in the Chandler. We hire our team after great care. Each of our plumbers goes through tough background checks. We have a zero-tolerance policy on dishonesty. All our plumbers are reliable and honest. They are simple men with their own families to take care of. This renders them safe for homes as well as offices. We only hire plumbers with a significant period of experience. Plumber Chandler AZ take tests as well to ensure that no one fools us. The result is that plumbers with Plumber Chandler are better than the rest. Our team is formidable. Chandler Plumber experts can fix issues and provide services for all customers with ease.

Disclaimer: Plumbers Today is a free service that connects users with plumbers in their area. All contractors are independent and are in no way affiliated with Plumbers Today. Plumbers Today can neither endorse nor guarantee the quality of any work performed. It is the responsibility of each user to vet the contractor that he or she hires, and to confirm that the contractor meets all licensing and insurance requirements in that jurisdiction.


Each Government at the state level has their own Authority and regulations in place for licensing plumbers. They are also responsible for the interpretation, administration and enforcement of the regulations outlined in the NCC.[38] These Authorities are usually established for the sole purpose of regulating plumbing activities in their respective states/territories. However, several state level regulation acts are quite outdated, with some still operating on local policies introduced more than a decade ago. This has led to an increase in plumbing regulatory issues not covered under current policy, and as such, many policies are currently being updated to cover these more modern issues. The updates include changed to the minimum experience and training requirements for licensing, additional work standards for new and more specific kinds of plumbing, as well as adopting the Plumbing Code of Australia into state regulations in an effort to standardise plumbing regulations across the country.[39]
A leaky faucet can be a relatively easy fix depending on the type of faucet, so get to know the basic types of faucets and how to take them apart. You can look for instructions online; YouTube videos are the most useful. A slow drip usually means that all you have to replace is a washer, but make sure you know which size you need before buying a new one.
Present-day water-supply systems use a network of high-pressure pumps, and pipes in buildings are now made of copper,[25] brass, plastic (particularly cross-linked polyethylene called PEX, which is estimated to be used in 60% of single-family homes[26]), or other nontoxic material. Due to its toxicity, most cities moved away from lead water-supply piping by the 1920s in the United States,[27] although lead pipes were approved by national plumbing codes into the 1980s,[28] and lead was used in plumbing solder for drinking water until it was banned in 1986.[27] Drain and vent lines are made of plastic, steel, cast-iron, or lead.[29][30]

Think that by calling for plumbing services you will have to clean up after the work is done? Not when you work with us! At Bud’s Plumbing & Repair Service, our uniformed plumbers arrive at your door with shoe covers and are conscious of the cleanliness of the work area. In fact, once the job is done, you won’t be able to tell we were even there! That’s how clean we leave your property. There is no mess for you to clean up, so you can get back to your normal routine without hassle.

Welcome. SG1 Plumber offers fast and affordable plumbing services in Singapore. Our plumbers are equipped with the tools and skills to provide quality plumbing services. Besides offering the plumbing services, we also provide roof leaking repair, waterproofing services and kitchen sink repair & installation. We have all undergone training and education to get their license to work as a master plumber in Singapore. Anyone can schedule an appointment with our team of plumbers right away.
Clogged or jammed garbage disposals are some of the easiest repairs to make. You don't even need an extra tool because every new garbage disposal should come with a hex wrench attached to the disposal itself. Your garbage disposal should also come with instructions on how to properly repair the disposal if it gets jammed. Always make sure the power to the disposal is turned off at the source before you attempt any repairs. Make sure you know what types of foods are intended for garbage disposals, and run it as often as you can to prevent clogs or jams.

It sure can get cold in Denver, and the last thing you want is a water heater issue causing you to take cold showers. You can crank up the hot water with our help. From repairs to expansions, we easily handle all your water heater needs. We can also provide safety enhancement services. Contact us to find out how we can ensure your water heater is up to any job. It’s time to put your days of cold showers in the rearview mirror.
Much of the plumbing work in populated areas is regulated by government or quasi-government agencies due to the direct impact on the public's health, safety, and welfare. Plumbing installation and repair work on residences and other buildings generally must be done according to plumbing and building codes to protect the inhabitants of the buildings and to ensure safe, quality construction to future buyers. If permits are required for work, plumbing contractors typically secure them from the authorities on behalf of home or building owners.[citation needed]

Plumbing is one of your home's main infrastructures - yet water can also be your home's nemesis. So count on True Value Hardware Stores to help you tackle any size plumbing job. From basic projects like installing a new faucet or water filter or opening a clogged drain; to a bit more complex like replacing a water heater, toilet or sump pump, we can help.


My toilet's fill valve needed to be replaced after breaking on a Saturday evening. I immediately contacted Charlie's Rooter after having had a great experience with them previously with my garbage disposal install. Lulu responded within moments and setup an appointment time that worked for me on Monday. Luis was the plumber that worked on this job. He was on time and extremely kind and professional. Luis went straight to the root of the problem and replaced what needed to be replaced very quickly. Luis was respectful and explained everything he was doing and why. He was even nice enough to look at my bathtub and answered all of my questions. Also, the price was extremely reasonable. I will be recommending them to my neighbors and friends when they need a good, honest plumbing company that doesn't overcharge.

Leaks in your sprinkler system aren’t just annoying. They prevent your system from properly watering your lawn. Our Denver technicians are trained to locate and repair leaks quickly and efficiently. We also fix defective sprinkler heads, clogs, and other issues. In addition, we can winterize your sprinkler system so you won’t have to worry about any problems when the new season starts. With our help, you can have the most beautiful lawn on the block. We are pleased with the role we play in keeping Denver beautiful.
Apache Junction Ac Repair experts are well aware of the issues an AC faces. It is a heavy machine. This is why it requires regular maintenance. If you want the best performance, you need to take regular care. Issue and faults with ACs are common. It is also reasonable considering that they are on almost the entire day. When an issue comes up, you need a permanent solution. A permanent solution is only known by an expert AC repairer. While finding such a repairer is an uphill task, you have come to the right place – Apache Junction Ac Repair.
Plumbing reached its early apex in ancient Rome, which saw the introduction of expansive systems of aqueducts, tile wastewater removal, and widespread use of lead pipes. With the Fall of Rome both water supply and sanitation stagnated—or regressed—for well over 1,000 years. Improvement was very slow, with little effective progress made until the growth of modern densely populated cities in the 1800s. During this period, public health authorities began pressing for better waste disposal systems to be installed, to prevent or control epidemics of disease. Earlier, the waste disposal system had merely consisted of collecting waste and dumping it on the ground or into a river. Eventually the development of separate, underground water and sewage systems eliminated open sewage ditches and cesspools.
Sometimes you might need your sewer and drain lines inspected. For instance, if your sewage is backed up, then you probably want to determine what the cause is. In instances where we can't physically get to the problem to see what it is, we can use a sewer video camera to go down into your lines and take a video showing us what's the issue then. That way we'll know the appropriate way to deal with it. 

Alexa is an experienced lifestyle and news writer, currently working with Reader's Digest, Shape Magazine, and various other publications. She loves writing about her travels, health, wellness, home decor, food and drink, fashion, beauty, and scientific news. Follow her traveling adventures on Instagram: @living_by_lex, send her a message: [email protected], and check out her website: livingbylex.com
Plumbing originated during ancient civilizations such as the Greek, Roman, Persian, Indian, and Chinese cities as they developed public baths and needed to provide potable water and wastewater removal, for larger numbers of people.[6] Standardized earthen plumbing pipes with broad flanges making use of asphalt for preventing leakages appeared in the urban settlements of the Indus Valley Civilization by 2700 BC.[7] The Romans used lead pipe inscriptions to prevent water theft. The word "plumber" dates from the Roman Empire.[8] The Latin for lead is plumbum. Roman roofs used lead in conduits and drain pipes[9] and some were also covered with lead. Lead was also used for piping and for making baths.[10]
If left unfixed, a running toilet or a leaky faucet can end up costing you hundreds of dollars. Check out your water bill and how your water is running. If you find your kitchen dripping non-stop and your water bill going higher, you may have a leak! Let Parker & Sons put a stop to those leaks. Our team of expert plumbers will make sure to get the work done faster, get it right the first time, and do it efficiently.
Even attempting to fix your plumbing repairs on your own without proper knowledge can cause massive problems down the line. Book your local plumber using the Handy platform and you’ll be matched with plumbers near you who know just what they’re doing. Experienced and practiced in their craft, they’ll provide you with the best job at a price that won’t break the bank. When you use Handy to find cheap plumbers near me, you can rest assured that you’ll be connected with a capable plumbing service who will get your job done without you having to worry about how much a plumber costs ever again.
The Home Depot has a wide selection of high-quality plumbing parts including sump pumps, water heaters, HVAC systems, pipes and much more. The Home Depot even has eco-friendly plumbing options to help you save money and live green. If you need professional advice or installation assistance with any of your plumbing projects, turn to The Home Depot to help you finish your plumbing project. 
Help! The toilet won’t stop running. It’s a bummer, sure, but it’s something you don’t need to call your plumber about. In fact, DIYers should take note that it’s a quick fix that will cost you just $5. For instance, your handle might just be sticking, which can be solved by spraying some lubricant where the handle meets the porcelain. Ready to DIY? Here’s how to fix a running toilet.
Chandler Electrician provide installation services for all types of devices. With our service, you need not go anywhere else. We can provide you with any type of electric appliance that you need. Just tell us, and consider the job done for you. We do not use cheap or poor quality parts. All the parts that Electrician Chandler AZ use are from the best makers. The devices that we buy are directly from the companies. There is no middleman involved. This ensures that our customers get the best appliances. When you choose Chandler Electrician, you get the assurance of getting what you are promised.
Our sewer repair and replacement experts service Baltimore, Washington D.C., Northern Virginia, Delaware and the Philadelphia Area.  The specific counties we service are:  Baltimore County, Howard County, Montgomery County, Prince Georges County, Anne Arundel County, Harford County, Carroll County, Fairfax, New Castle County, Delaware County, Chester County, Stafford County, Fredericksburg County, Fairfax City, Alexandria, Arlington County, Loudon County, Prince William County, Falls Church, Manassas and Cecil County.

If you’re looking for a plumber in Des Moines, then you need to make sure that you receive quality customer service at all times. This means courteousness and a friendly demeanor, it means arriving on time and leaving no mess behind. It should not matter whether you’re having a routine check–up on your water heater or a comprehensive whole–house repiping, you and your home should always be treated with respect. In addition to a great reputation for customer service, you may also want to make sure that your plumber backs up his work with a solid satisfaction guarantee. At Golden Rule Plumbing, Heating & Cooling, we offer a 100% satisfaction guarantee as well as upfront pricing so that we can go over exactly what you’ll be paying before we even get started.
Our services are also available for plumbing tasks. Plumber Apache Junction AZ provides the best plumbing services in the Apache Junction. Our team of plumbers has an expertise with all types of devices. Be it taps or showers – Apache Junction Plumber have a fix for all. No one can fix leakages better than our team of workmen. Our plumbers are different than the others in the market. We always work for the benefit of customers. Other plumbers just want to fill their pockets. They point out faults that are not even there. They recommend for replacement of parts even when repair is possible. They do all this to earn extra money. They do not care about the budget of the customer.
It’s easy to take your plumbing system for granted, but when it goes out, going without water could be the least of your worries. Even minor plumbing issues like leaky faucets and clogged sewer channels can have major consequences if left unattended. Reliable Rooter Service is Greeley, Colorado’s trusted company for plumbing repairs around the house or office.
The next day, I had an unrelated incident with a sprinkler valve inlet pipe rupturing, due to corrosion (galvanized pipe. Since this situation caused me to lose water service to the house, Charlie sent someone over that day to do an emergency cap off. It was then explained what could be done to provide a permanent fix (basically replacing the old galvanized pipe and creating a new sprinkler valve manifold). A quote was given and the full repair was scheduled for the following day. All is good now, and the job came out $120 below the estimate.
I can't say enough good things about Elek Plumbing and the job David Marshall did. We had a flood in our basement due to a clogged out-take pipe. We called Elek because it was a Sunday and they offered emergency service. David showed up quickly and got to work immediately. Not only did he do a fantastic job, but he was friendly and kind as well. Elek's prices were extremely reasonable considering it was an emergency call on a Sunday. I HIGHLY recommend Elek.. ask for David if you can! He's the best!read more

I initially called Charlie's Rooter Service (CRS) due to a sewer line backup. Lulu answered and was very nice. She set up the appointment and Luis arrived on time and was also very friendly. He pulled out the largest root structure (out of my pipe) either of us had ever seen. We had a good laugh. He called it the catch of the day and had me take a picture of him with it.


The people at Elek plumbing were very professional and courteous. The service was incredibly prompt. They were at a water leak in less than 24 hours. They kept me posted of all the details . Fixed at least key pipe and replaced a water heater all within two days with continuous correspondence with me not being on site. Derek was most professional and helpful. I am so lucky That someone referred them to me.read more
Journeyman plumber: Once the requirements of an apprenticeship are fulfilled, plumbers can apply for a journeyman license. Many workers in the plumbing industry are journeymen. Obtaining a journeyman's license requires a fee and the successful passing of an exam. Licenses vary by state, although not all areas require journeymen to be licensed. Instead, the amount of work they are able to perform is limited.
toilets work off of siphon.more correctly it's the timely transfer of water from the tank to the bowl through the ports that starts the siphon and carrys the solids and water downstream,thus completing a flush.i also live in florida and due to lots of hard water everywhere can tell you that most likely the toilets are full of deposits and need to be replaced or are of poor quality.all of the toilets from home depot are trash i would suggest getting one from the factory or from a plumbing supply house.DO NOT GET A 1.28gpf...1.6gpf is still legal
Nothing wears on homeowners like the idea of handling plumbing problems. From the water heater to sewer line, let Mr. Rooter Plumbing take the pressure off of you (and put it back in your shower lines). Our plumbers are the most recognized professionals in the world because we’re committed to amazing service and amazing results. In everything we do, our team makes sure your home’s plumbing issues are solved with the most effective and long-lasting solutions.
The ApolloPEX Stainless Steel PEX 1-Hand Pinch Clamp The ApolloPEX Stainless Steel PEX 1-Hand Pinch Clamp Tool provides extreme versatility. It is designed for the creating secure stainless steel pinch clamp connections in combination with PEX barb fittings within PEX piping systems in sizes ranging from 3/8 in. to 1 in. The ApolloPEX Stainless Steel PEX 1-Hand Pinch ...  More + Product Details Close

If you are looking for an honest plumbing company, this is the place. Easy to schedule, and they use excellent parts. We have tried three other area companies over the years, and all left us feeling ripped off. I had to actually block one of the other companies from calling every month for 'specials'. The work ELEK has done for us is perfect. This is a really nice group of service techs, they don't try to sell you things you don't need. the home inspection is worth the money.read more

Specializing in sewer inspection and sewer cleanings, we also offer a variety of plumbing repair services for garbage disposals, faucets, sprinkler systems and sewer channels in Greeley, CO and Greater Loveland and Fort Collins. Small plumbing problems such as clogged sewer systems or deficient faucets are inconvenient now and can lead to bigger problems down the road. Save money in the long run by correcting your plumbing issues today. And to further save you money, Reliable Rooter Service always offers free quotes and inspections, $10 off drain cleaning and $25 off sewer inspections.

Another way to avoid a service call from your plumber is to make sure the outside faucets are turned off in the winter and make sure you disconnect the outside hoses. You need to shut the water off from the inside. Then, open the valve on the outside to let the water that’s in there drain out—you switch both of them to the opposite direction so one is always closed and one is always open. We have to fix tons of these in the spring mostly because people leave their outside hoses connected and they freeze up. The repair could cost $100-$200 or more. Another tip would be if you’re going away for any length of time, like on vacation, turn off your water. If on any of those days the temperature drops below freezing, have someone check in on your house. I’ve been called to homes where the family returned from vacation, and there was water flooding out from the front door.
Plumbing reached its early apex in ancient Rome, which saw the introduction of expansive systems of aqueducts, tile wastewater removal, and widespread use of lead pipes. With the Fall of Rome both water supply and sanitation stagnated—or regressed—for well over 1,000 years. Improvement was very slow, with little effective progress made until the growth of modern densely populated cities in the 1800s. During this period, public health authorities began pressing for better waste disposal systems to be installed, to prevent or control epidemics of disease. Earlier, the waste disposal system had merely consisted of collecting waste and dumping it on the ground or into a river. Eventually the development of separate, underground water and sewage systems eliminated open sewage ditches and cesspools.
Water leak detection devices, eco-friendly shower heads, and water-recycling pipes are only some of the most advanced plumbing devices that you can connect to your water supply network. Imagine having a device that will detect leaks before it gets worse; a shower head that releases fewer amount or water yet a higher amount of pressure so that you can still have a great bathing experience; and a system of pipes that recycles safe-to-reuse grey water and connects it to your garden irrigation pipes. These will all raise your water supply system a notch higher!

Menards® has everything you need for your plumbing supplies. Update your plumbing with our selection of pipe, tubing, hoses, fittings, and accessories. We offer pipe, hoses and tubing, and fittings in different sizes for all applications. Install new plumbing features or make necessary repairs with our plumbing installation and repair products. We offer a variety of tools for faucet repair, including aerators, O-rings, and washers. Use our selection of pipe cements, cleaners, and primers to maintain your plumbing. Make other repairs with our soldering compounds and accessories. Hydronic radiant heat systems use hot water to heat your home and keep you comfortable all year long. We offer a variety of sewage basins and septic tanks to fit your home as well as valves for many different applications. Our plumbing access panels are durable and dependable. Menards® offers everything you need to update your sink or tub with our selection of utility sinks and accessories and tub drains, overflows, and accessories. We also offer a wide selection of refrigeration line sets.

Cast iron and ductile iron pipe was long a lower-cost alternative to copper, before the advent of durable plastic materials but special non-conductive fittings must be used where transitions are to be made to other metallic pipes, except for terminal fittings, in order to avoid corrosion owing to electrochemical reactions between dissimilar metals (see galvanic cell).[17]
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