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Chlorine Demand |
 | | The chlorine level may be so high that it is bleaching the color out of the reagent. |
 | | An infestation can exhaust normal chlorine levels and require a specially formulated algicide to solve the problem. |
 | | Often, the growth is not visible on the pool surface itself. |
| www.greenvillepool.com /facts/chlorine_demand.htm (852 words) |