Why would three-inch chlorine tablets in the pool canister barely be dissolving even though water is filling the canister and its piping looks unimpeded?

Answer 1

It really does not matter if the tablets are dissolving slow, Is what matters is the amount of Chlorine Ph and CYA in your pool. chlorine between 1.0-3.0 up to 5.0 O.K. when heavy use but adds dramatically to CYA PPM PH 7.2-7.6 CYA between 50-80 PPM Kenny Kummer 801-232-5893 Well there are two possibilities here the first and simplest is that the water is just too freakin cold. The colder the water the slower the tablets will dissolve. So where in the summer your tables would go in maybe 3 days when the water temperature is in the 50's it may take 2 weeks to dissolve. The other possibility is that the chlorinator is clogged where you cannot see it. In an off line chlorinator (where the water passes through a small tube tapped into the pipe. As the tubing gets older and the chlorine has a chance to oxidize it the inner diameter will be reduced in turn reducing the volume of water moving through the feeder and slowing the erosion. On an in line unit it can get clogged internally and you would not be able to access the problem. This is assuming you have a Hayward CL-200 in line or CL-220 off line unit. There are a lot of other manufactures of chlorinators that are all made differently so I would need to know the specific make and model to list other possible problems.