To repair a leaking cold water valve, turn off the water supply, drain the heater, inspect for wear, tighten loose connections, and replace worn washers Use plumber’s tape to seal threads, then test for leaks after reassembly. If this is the case, water will drip down the pipe and pool at the top of your water heater To correct this, replace the valve with a new one, which is a fairly inexpensive repair. If the water heater is leaking from the top, there may be serious issues in the inlet water pipe or the pr valve You need to run a complete diagnosis before finding an exact solution for your options.
Drain the whole system down turn water heater off then open all the valves If water doesn't stop draining in a half hour Cover water heater with plastic sheeting, use either a pro press, compression or push to connect full port valve After the piping is complete let water run out all the fixtures before turning water heater back on. Rusting on and around your water heater and its pipes and valves (or in the water itself) is a sign of corrosion As the parts or tank start to corrode, they weaken and leak.
Start by tightening any loose connections at the cold water inlet or hot outlet.
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