Water Heaters

Because the tank is under pressure, hot water exits through the hot water outlet at the top of the tank. When hot water leaves, cold water enters through a diffuser dip tube that extends down inside the tank. The cold water pipe normally has a shutoff valve. A magnesium or aluminum anode rod utilizes the principle of ionization to minimize corrosive elements in the water that shorten tank life. The larger the anode, the longer a tank is likely to last.

The drain valve at the water heater's base is used for draining the tank or flushing sediment. This important maintenance should occur one or twice a year, according to the manufacturer's recommendations.

A temperature and pressure relief (T & P) valve near (or on) the top of the tank opens automatically if temperature or pressure exceed safe levels. This should be tested periodically, according to manufacturer's directions.
 

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/ House Plumbing / / Pipes and fittings / / Water service / / Water valves / / Drain, waste & vent plumbing /
/ Sink traps / / Kitchen plumbing / / Gas hookups / / Kitchen sink plumbing / / Kitchen sinks / / Faucets /
/ Ball faucets / / Cartridge faucets / / Compression faucets / / Bathroom plumbing / / Bathroom sinks & lavatories /
/ Bathroom sink plumbing / / Bathtubs & showers / / Toilets / / Water heaters /

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