The housing on a pool filter is the plastic cover that is on the outside of the filter. Many times with age the plastic can form cracks and leak. If the filter housing is leaking it can waste water as well as reduce the efficiency of the filter. A new housing for a pool filter can be an expense that you may not want to incur at the present time. The filter housing can be repaired to avoid replacing it until a later date.
Things You'll Need
Turn off the power to the filter by switching off the circuit breaker that supplies electricity to the filter.
Disconnect the inlet hose from the filter, or if it is underground turn off the shutoff valve before the filter.
Clean the area of the filter housing that is cracked and leaking using mineral spirits and an old rag. A clean area will ensure a better bond for the silicone. The mineral spirits will remove moisture from the surface of the housing as it dries.
Smear silicone over the crack and beyond it an inch in all directions. Let the silicone dry according to the instructions on the tube. Apply another coat of silicone to ensure a good seal. Let the second coat dry and turn on the shutoff or reattach the inlet hose. Turn on the circuit breaker.