PoolGuyNJ said:In an unused pool, the loss might be that low but if it's got activity, it's all over.
The sun, the temps, the activity will drop the FC below the effective level needed for sanitation and oxidation and continue to leave any bio-badies to do their version of the wild thing and the oxidation needs unmet. That added demand needed to counter the unchecked period and the time needed to rebuild the residual is pushing the chlorination system more than needed, if it can meet that at all, and leaving the pool cloudier each day with a significantly increase opportunity for unsightly algae growth or not getting high enough to kill any chlorine resistant (at lower levels) organisms.
Scott
PoolGuyNJ, The point I am trying to make is that running during the day or during the night makes no difference. If you run 5 hours during the day and produce 2ppm or run 5 hours at night and produce 2ppm. I do agree that FC consumption is greater with bather load and one should increase the output of chlorine or increase the run time to compensate. I compensate by running during the day when the load is present. In any case demand is demand. If the demand is higher you need to give it more chlorine.