Water temperature gets too hot thermal expansion most common defective valve water pressure first check the water temperature at any faucet.
Why is my hot water heater leaking from the copper pipe on the side.
Put a thermometer in a glass and place it under the tap.
If the tank is leaking there must be internal leak of hot water heater.
Tighten loose pipe fittings.
Or may be leak in the drain pipes of the hot water system overflow pipe water heater running.
This device is intended to keep your water heaters tank from building up pressure and literally blowing up.
Before removing the water supply tubes verify that the water is turned off by turning on the hot side of a faucet somewhere in the house to see if water continues to flow.
This valve will open or leak for the following reasons.
Turbulence enters your system in 2 ways.
The pipe in question is the discharge pipe that connects to the pressure release valve.
To replace the water heater flex lines first shut the water off to the water heater.
The 1 reason why copper pipes leak is due to turbulence.
Feet per second for cold water and 5 fps for hot water.
Most likely water leaking from a copper pipe or elbow shaped fitting down low is an indication that the prv pressure relief valve on your water heater is leaking.
This will be a shutoff valve on the cold water pipe leading to the water heater.
There may be a lot of reasons hot water heater leaking.
Leaking may be cause by the old pipes or by the water heater overflow pipe of hot water heater pipe leaking.
Limiting the velocity reduces the turbulence in the pipes that creates pinholes.