Choosing A Filter System

by Annette
(Smithfield, NC)

I have a 33' round above ground pool with one return, but it doesn't do a good job cleaning the pool. A pool company stated that I should change over to a sand filter system.

Should I purchase a sand system and still have one return or just add another return on the other side with the same pump or add a return with another pump?


Hi Annette. There are so many variables it's impossible to say if you would be better off with a different system or a different return. If you currently have a 1 1/2 HP pump a second return would probably be a big help. That large of pump needs the second opening to operate effectively.

If you do not currently have a sand filter you must have either a cartridge or a DE. Neither are bad systems when properly sized for the pool, and equipped with the right pump. The pump needs to be matched with the cleaning capacity of the media. A large pump pushing water through a small filter is never going to properly clean a pool. Just like a small pump will never push enough water through a huge filter. Everything needs to be matched up.

My pages about filters and pumps should help you with your decision, plus other ideas for keeping you pool clean and inviting.

Above Ground Pool Filters

Pool Cleaner

Above Ground Pool Care

Above Ground Pool Filters

Sand Filters