I have a 20,000 gal, in ground pool with a Sta-rite 1.5 hp pump and a Sta-Rite cartridge filter. In the past I would attach a garden hose to one of the drain ports on the filter housing and wait 1.5 days to the lower water in the pool.
Would this setup work better? I would install a shutoff valve before between the pump and the filter and then install a tee between the shutoff valve and the pump fitted with a 2" female threaded adapter that I could attach a 2" drain hose to. I would close the 2" shutoff valve and then turn the pump on to lower the water level. All the plumbing is 2". Would this setup work at lowering the water level in the pool more quickly?