I would use 15,000 gallons then.
We recommend a cell be at least 2X your pool volume. A t-15 cell is rated for 40,000 gallons and is well sized for a 15,000 gallon pool.
Each cell T-3, T-5, T-9, T-15 will produce a specific quantity of chlorine before it is depleted.
[2][3]
Hayward SWCG Cell Specifications
CELL | GALLONS | LBS/DAY | LIFETIME CL LBS(1) | LIFETIME |
---|
T-Cell-3 | 15,000 | 0.53 | 210 | |
T-3 | 15,000 | 0.53 | 193 | 364 days at 100% or 8,736 hours at 100% |
T-Cell-5 | 20,000 | 0.636 to 0.784 | | |
T-5 | 20,000 | 0.636 to 0.784 | | |
T-Cell-9 (925) Extended Life | 25,000 | 0.98 | 480 | |
T-9 | 25,000 | 0.98 | 354 | 361 days at 100% or 8,664 hours at 100% |
T-15 | 40,000 | 1.47 | 580 | 362 days at 100% or 8,688 hours at 100% |
T-Cell-15 (940) Extended life | 40,000 | 1.47 | 725 | |
(1)Equivalent pounds of Trichlor produced over the lifetime of the cell with properly maintained cell and water chemistry.
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