I have wanted an AGP for some time, and I finally talked my husband into it! We decided on and just ordered the pool - 33'x54" Sharkline Matrix AGP (28,500 gallons). We have decided on other parts, just having trouble determining the best sizes for 1) catridge(s), 2) pump, and 3) SWCG. For this size pool, the online retailer suggested a 200 SF cartridge, with a 2HP, 2-spd pump, and SWG (which was only for 18,000 gallons). From other posts I have read, I think all three of these recommendations may be wrong.
1) Cartridges. I read bigger the better for the cartridge. I'm all for cleaning less! But exactly how much bigger without being overkill/waste? Also, the larger sq. ft. cartridge(s) are all listed for in-ground pools. Does this matter?
2) Pump. I'm not sure about 2 spd. vs variable speed. Also not sure about how much HP. Don't want too much, lower energy and costs always better, but also want enough. Have noticed others mention that they need enough for vacuuming, solar heaters, lights, etc.
3) SWCG. I read you should get one that is made for more gallons than you have. If true, same problem as cartridges. The ones I find for that many gallons say for inground pools. Again, are these interchangeable for above ground/inground?
Since we are newbies, any help or guidance anyone could give, would be greatly appreciated! BTW, ease of use is important to me! My husband works a lot and I will be doing most of the upkeep/maintenance. Sometimes it doesn't matter, but if it does, I don't mind spending a little extra on the front end if it will make things more energy efficient, easier to use, last longer, etc.