After receiving a lot of rain the water level in my inground pool is a high ( above the skimmer opening) . I know most folks with sand filters have a waste line they can pump off the excess. I happen to have a cartridge filter. I was thinking it would be easy to remove the drain plug located in the bottom of the filter chamber and plumb it with a valve and pvc pipe to a downspout from roof gutters nearby. Does anyone see a problem with lowering the water level this way?