| Safety |
Blue color tablets distinquish product from incompatible chemicals. |
Liquid chlorine poses potential spill and splash concerns. |
Solid form of chlorine makes it easy to handle. |
Minimal safety concerns. |
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| Handling |
Easy-to-handle and administer. Various package sizes. |
2.5 gallons jugs weigh over 20-lbs. |
Easy to handle and administer. Various size pails. |
40-lb. bags of salt. Very large quantities required during start-up. To reach 3,000 ppm in a 200,000 gallon pool, it would take 125 x 40-lb. bags or 5,000-lbs of salt. |
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| Chemistry |
pH of 10 means easier water balance. Tablet chemistry does not degrade alkalinity. Chlorine strength degrades slowly. Tablet erosion technology allows for more consistent chlorine delivery. |
pH of 13 requires large amounts of acid to balance water (2 to 3 times as much acid addition as Sustain.) Chlorine strength degrades rapidly. Concentrated hypochlorite solution is very corrosive to equipment. |
pH of 3 requires large additions of sodium carbonate to balance water. Destroys alkalinity. Raises stabilizer levels. Chlorine strength degrades slowly. Very corrosive to equipment. |
Must maintain ~ 3,000–9,000 ppm salt concentration in the pool; salt is converted to chlorine as it passes through the cells. |
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| Maintenance |
No equipment to install. Skimmer dispenser cup controls addition of chlorine. Liquid Shield acts as a back up reserve of chlorine. No stabilizer addition concerns. |
No equipment to install. Simple to administer. Water balance requires more attention due to high pH of 13. |
Minimal maintenance. Attention must be paid to stabilizer build-up which will slow down chlorine effectiveness. |
Must replace costly cells every two to four years. High energy cost to operate. |
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