I got the SJ and it has been great for 5 years, the edge should be better...
Filters that is the question.... I went with a cartridge filter as I did not want to lose 100 to 300 gallons of water to backwash each time... A bigger sand filter will backwash less but may be at the 300 gallon level to backwash.... A big cart filter will use 50 gallons or so to clean 4 filters once a year. DE is better than both sand and cart for clarity but because it cleans so much better you may be backwashing it more...
A cart filter is the middle of the road, less water to clean and better filtering than sand but less than DE... I love the Pentair Clean and clear plus 320, 420, 520... I went with the 320 and only clean it once a year, matter of fact it only goes up 1.5 psi in a year on my pool so technically I could go longer than a year
I have not used this company but they are close to what I paid..
Crystal clear water the easy way. Clean & Clear® Plus Filters have a corrosion resistant injection molded filter tank featuring superior strength and reliability. The cartridge assembly uses four easy to clean, non-woven, polyester cartridges. Each filter is supplied with a bulkhead union set...
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