Can i put a timer on my pump/filter?

[thepoolman1]

Before you run out and buy a timer, remember that if it is being mounted outdoors it needs to be in an outdoor-rated enclosure. The Intermatic version is a T104R for 240 volts and T101R for 120 volts. The picture above is an indoor only enclosure. I know that a lot of pool owners probably have installed that one themselves, but it does not meet code. The indoor versions do not have the "R" at the end of the model number.

If you are not comfortable installing one yourself, have a pool professional do it. This is probably the best way, as there are most likely going to be wiring and conduit changes that need to be made as well. If you have an electrician do it, be sure he or she is experienced with swimming pools.