What is a T&P valve?

All water heaters whether gas or electric need to have a temperature and pressure relief valve (commonly called a T&P valve) in them. These valves are required because hot water heaters are in reality, pressurized tanks. T&P valves are there to reduce pressure inside the tank, if it builds up. Simply put, when water is heated, it expands, a...

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What is thermal expansion?

When water is heated, it expands in volume by 2 – 3%, depending upon the initial and final temperature. This can mean as much as three or four extra gallons of water in a closed system. If there is no demand for hot water, the expanded volume of water has no place to go. Since water is not compressible, the expanded water cannot be accommodated in ...

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Pressure Reducing Valve

A pressure reducing valve, (PRV) is a great way to protect the plumbing in your home. Coleman Plumbing Services recommends the use of a PRV because it can also help to save water. Lower pressure means less water coming out of fixtures. However, pressure which is too high can result in leaks, eroded washers, banging pipes, and even pipes bursting. A...

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Professional Plumbing Services – Roswell, Alpharetta and Woodstock Georgia

Every customer's individual plumbing needs are important to us at Coleman Plumbing. Our focus of providing quality 24 hour service has made our plumbers the first choice of many residential and commercial clients.We provide a free safety inspection and estimate with any completed job. We are a family owned business that have been serving clients fo...

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About Coleman Plumbing LLC - Professional Plumbing Services

Coleman Plumbing Services is a licensed and insured plumbing business that prides ourselves in being your total service plumber. We are located in Woodstock, Ga. And have been serving our neighbors in Cobb, Cherokee, and North Fulton counties since 1970. We serve many areas including Woodstock, Marietta, Kennesaw, Acworth, Canton, Alpharetta and Ro...

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