Hi Shub;

Different strokes, and all that. For some of our users once the wife lays down the law, the discussion's over.

OK, you've added a bit of information I didn't have before (maybe I overlooked it?). Anyhow, it is ABSOLUTELY NORMAL for a pool that's being used regularly to get cloudy overnight if the chlorine drops to zero the preceding day, ESPECIALLY when you have heavy lotion users, using the pool. To prevent that, you MUST keep the chlorine above the minimum level shown in the Best Guess chart -- if you haven't read that page, you really should do so -- for YOUR CYA level, whatever it is.

Currently, with your CYA at 100, that means the MINIMUM allowable level is 8 ppm.

Without considering your wife's preference, here's what I would recommend you do:
+ Hold your current levels for 2 days AFTER the last trace of any algae. (You may already be past that.)
+ Once you've gone 2 days with NO algae, and no slipperiness on the sidewalls, let the chlorine drop to 10 ppm.
+ When the chlorine drops to 8 - 10 ppm, add 2 gallons of plain 6% bleach that evening. Test chlorine daily (for now) and repeat the 2 gallon dose in the evening of each day you see a level below 10 ppm FC.
+ Meanwhile, use muriatic acid to drop your pH to just below 7.0. Let it rise to 7.4 (it will); repeat the acid dose when it reaches 7.4. This will gradually lower your TA.
+ If you want to do so, you can ALSO raise the borate (borax) level in your pool to 60 ppm or so. This will make your pool more resistant to algae, but NOT to lotion / urine / body oil based cloudiness. Let me know if you want to do so -- it will take 16 boxes of 20 mule team borax and around 4 gallons of muriatic acid if you want to do this.
+ Do what you can to eliminate peeing in the pool - for a lot of boys, it's as simple as giving them permission to "pee behind that bush over there"! Urine really does use up a lot of chlorine.