My pool is one of the seasonals. Pool School mentions they are disposable but doesn't mention them in the cleaning filters section.
Econmically, the cartridge filters for my pool are about 5 bucks each at Walmart. The filter cleaner at the pool place lets me clean 4 filters per bottle, so net per month is a wash - I would clean 4 filters/month. I found a link online for soaking filters in bleach, and then muriatic acid but I am not crazy about having those chemicals around with curious kids. Do I need to do anything other than spray them out with a hose? I am also not crazy about adding them to the landfill every month. Can I recycle them?