Started up our new DIY build IG pool a few months ago and the pool/water look great with all the info gleaned from this forum! My pool is about 15k gallons, free form design, play pool depth (4-5.5-4), with a pebble sheen interior. All Pentair equipment including a VS pump, IC 40 SWG and Easytouch automation panel. I run the pump about 9hrs total at varying speeds and times of day, with and without the fountains running (2 deck jets, 48" sheer and 2 wok pots....trying to cool it down!). My water temp fluctuates anywhere from 86 up to 90 according to the Easytouch temp sensor (not surprising since I am in Phoenix and its HOT!) I started my SWG at around 30% and found that I was still having to add quite a bit of liquid chlorine to stay in the 3-5ppm range. I have subsequently bumped up the SWG % several times and am now at 70% but am still adding 1/2 gallon of liquid chlorine every couple days to get back to 3-5ppm. My chemistry seems to be pretty good otherwise although my CYA was still a bit low so I have upped that. PH still creeps about every 3 days and I am adding about 1/2 gallon of MA. Test results from this morning were:
As I said, water looks great so I dont think I really have any issues, I was just curious if I should have to be running my SWG so high to keep up? I know its hot here and we do swim everyday (6yo and 4yo girls ) so is that just the nature of the beast?
My second question is regarding a rust spot/stain I have on one wall. It is about the size of a quarter and appears to be growing out of the wall? No other stains anywhere in the pool. Might I have a small crack in the pebbletec and the shotcrete letting water into a piece of steel? I have not been able to perform the vit c test on it yet. Any input is appreciated!