Correcting Leaks In Well Pumps

Posted on: 5 December 2014

One of the challenges of submersible residential pumps is that they can be very hard to access. This is because the pump and motor assembly is assembled high above the well pump. Another challenge of diagnosing well pumps is that they often have symptoms that can overlap with each other. This can make it difficult to diagnose the cause of the malfunctioning pump. However, one of the most common problems is a leaking tank.

Finding Leaks

Sometimes, the well pump does not have enough water within the tank. The challenge of correcting leaks in well pumps is that it can be difficult to locate where the leak is coming from.

The Threaded Fittings

One place where a well pump leak can come from is at the threaded fittings. To correct this, you will need to disassemble, clean and then apply a sealant or tape to the site of the leak. This will fill in the gap through which moisture escapes, bringing leaks to a halt.

Leaks in the Tank

Rusting can eventually cause the tank to develop holes. Unfortunately, the holes cannot be permanently corrected and you will likely need to replace the entire tank. However, the holes can be patched up temporarily to allow the well pump to remain in operation until you can replace the entire tank.

Patching Leaks

Very small holes in the tank can be patched using threaded screws. These leak-repair screws have washers around them designed to seal the hole as the screw is driven into place. This helps slow own the leak until you can implement a more permanent solution. Buy several sizes of the screw, start with the smallest and work your way up until you find one that fits snugly into the hole.

Small globs of epoxies or sealants can patch a hole. They must be fast-setting so that the leak won't wash away the sealant before it can set. The sealant is not designed to be a replacement for getting a new well pump. Instead, it is designed to hold you over until you can have a new tank installed.

While inspecting the damage, be careful not to poke the area too much because the tank can sometimes be thinner than expected and break, causing a catastrophic leak. Since correcting the leak might be intimidating, you should consider contacting the manufacturer to have a service technician sent and you should also consider getting a new well pump.