Since my CYA is around 240, I need to drain and refill the pool. Some people have recommended doing multiple 20% drain and refills to prevent popup or structural damage to the pool. I also have been told to avoid drying out the plaster. A 20% drain will also allow me to use the pool water to irrigate my lawn and yard each time instead of the sprinklers, without completely flooding it.
I can rent a submersible pump for $40 a day at Home Depot, but since I will need to do six 20% drains, that would be $240. I might as well buy a pump. I am new to this, so am not sure what specifications and models I should look for. Any recommendations for a decent quality pump would be appreciated. I want to avoid the problem another member had when the pump leaked oil into his pool.