Check the plumbing pipes above the water heater using a stepladder if necessary.
Water heater copper pipe leaking.
Simple and fast way to fix corroded leaking water heater pipes.
The pipe in question is the discharge pipe that connects to the pressure release valve.
The 1 reason why copper pipes leak is due to turbulence.
This valve will open or leak for the following reasons.
Start by turning off the main water line to your home and bleeding.
Limiting the velocity reduces the turbulence in the pipes that creates pinholes.
There may be a lot of reasons hot water heater leaking.
If the tank is leaking there must be internal leak of hot water heater.
Leaking may be cause by the old pipes or by the water heater overflow pipe of hot water heater pipe leaking.
Immediately turn off the water supply upstream of the leaking pipes.
Drain the water from the damaged line and ensure that the area to be patched is clean and dry so that the epoxy will properly adhere to the pipe.
Depending on the location of the leak you may want to drain the tank although most flexible copper tubing on a water heater is going to be at the supply lines on the top of the water heater in which case it is not necessary to drain the tank.
Plumbing code limits the velocity within your piping system to 8 fps feet per second for cold water and 5 fps for hot water.
Replace water heater supply lines if they corrode or begin to spring a pressurized water leak.
Adjustable wrenches plumber tape.
The flexible copper lines and connector nuts are not as corrosive as the other metals used in water heater production yet they can be damaged by contact or during repairs and maintenance on water heaters.
Water temperature gets too hot thermal expansion most common.
A drip from above can easily leak down on top of the water heater and even work its way down the insulation and make it look like the leak is coming from the tank itself.
Turbulence enters your system in 2 ways.
Turn off the water supply to the water heater.
In any case a leaky pipe can deprive you of water till a plumber can come and.
Step 3 check fittings.
Copper and pex piping are the preferred alternatives and can be used in place of the leaking pipe by using sharkbite couplings.
Or may be leak in the drain pipes of the hot water system overflow pipe water heater running.