The chlorine disperses readily. We recommend running the pump for at least 30 minutes after addition to ensure it getting well mixed.
I don't mean to sound like I'm not listening... and I am asking questions here to seek answers from expert folks such as yourself, so your answer is truly appreciated... but I like to think part of my brain still functions and I am looking to
understand why this is the way you are saying it is... so repeating that it will be fine because it just works that way doesnt help me! I am hoping someone can help me /point me in the direction of scientific theory or empirics I can review and understand..
Sure there is a point where if you inject chlorine through returns at high RPM/flow rates at the very surface, and suck it back out quickly through the skimmer with strong suction, the chemicals go largely in and out and if you have a very large and deep pool, the bottom of that water doesnt see a lot of chlorine.... I am assuming it depends on how close returns and skimmers are, water volume and velocity, but if your flow moves the chlorine coming out of your returns faster than it dissipates into the water, then it can't be good... IF that is the case, I cannot see how running the pump for 30 minutes means anything. If you have a SWG, and a pump that runs even 24/7, but you push chlorine in and suck it right back out around surface level before it fully mixes in with your bottom water... that's no good. Maybe that is indeed why folks get algae on the floor of the pool..
I suppose it is also hard to say because standard practice is to test your water by taking a sample 18" below the water line. I do wonder what the results would be if you had a 20-30k gallon pool and tested a sample 8-9' deep under the water line..
Again, if anyone knows and is willing to point me in the direction of a scientific rationale I can study and understand, that would be hugely appreciated. I get that on this forum there are lots of really smart and knowledgeable folks, but just saying it "believe us because we all say it works this way" doesn't work for everyone - it's more faith than science - and I am just trying to learn the ways of the water...!
Many thx!