How to Select an Inground Pool Filter 

Greatest wrestling clique ever!

That is what the manufacturer claims about the Polysphere. But, unfortunately, we have no experience with the product, so we are unable to give our verdict on the product.

You may be referring to the crushed glass used in sand filters as an alternative to sand. We have had mostly negative reviews on that product. It works well for a year or so but then it breaks down and has to be replaced much sooner than sand.

The variable speed pump and filter are appropriately sized. The heater is slightly undersized. We'd typically recommend something 200k btu or higher.

We'd recommend a sand filter that has a diameter between 21" and 27". The larger you go, the longer you can go between backwashing. A 1HP pump will work with those sizes.

All three filter types on the same pool at the same time? Yes, I guess you could, but I don't know why you would.

The filter depends on a few factors. How many gallons is the pool? What is the flow rate of the pump? Do you want sand, de, or a cartridge filter?

Everybody has an opinion. It’s the justification and motivation behind the recommendation that are most important. Each pool is different so homeowners will have greatly varied experiences that won’t necessarily apply to your specific pool’s needs. In the future if everything seems to be working I’d need a really really specific reason to switch. Warning: Many a homeowner has been convinced by neighbors to convert to a salt water system. I’m so tired of listening to sob stories of regret it’s become a running joke. Just because one guy raves about it doesn’t mean you will get satisfactory results. When the SWG cell dies after 4 years and you are faced with an $800 replacement you will understand