Brand new above ground pool. 27' Diameter, 54" sides, 12-18" dish in center. When using this formula (diameter(27) x diameter(27) x average depth(4.5) x 5.9) I come up with 19,354 gallons.
Dealer equipped pool with the Hayward Aqua-Trol T Cell 5. The manual says it is rated for 18,000 max and their salt reference tables stop there. The cell itself has a sticker that says it is rated for 20,000. They are very new to SWG's. We are going with it because we love the SWG our old Intex pool had.
Is this cell big enough?
Hayward Tech Support says I need the in-ground Pool version rated for 40,000. Not the above ground 25,000 product or the in-ground 25,000 product but the 40,000?!?
I am thinking a SWG that is slightly undersized might need to run longer which will shorten its lifespan; but the prorated costs might even out when compared to the more expensive larger units.
Would welcome your thoughts.