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you guys are awesome, thanks so much.

Hello all, Acid columning compared to spreading it evenly: which is for lowering PH and which is for lowering TA? I've been told that acid columning will not lower your PH and it WILL lower your TA...is this correct? Thanks for the help.

hahaha thats what im thinking, this guy is just a weirdo. Oh well, still gotta do my job.

I definatly thought of the return issue. The main return is on that side of the pool. I'm testing like a hawk, nothing conclusive yet. The rash is on the outside of his goggles on his face and neck. He doesnt get the rash on the inside. He keeps trying to tell me is is athletes foot. I'm trying...

Hey guys… don't know if this is the place to post this, but I'm looking for some more help. A member here is having issues with face rashes when he is using our pool. Normal, but here is the kicker. He only has this problem when he is swimming in our first lane near the wall. He describes it...

cool, cool I'm using sodium hypo with plaster. FC 3 CC .5 PH 7.4 Alk 80-90 Cal 400-430 CYA 0 Temp 82 CSI 0 - .3

For my water gurus... How low is too low for T/A? I'm running 70-90 for a 200,000 G pool

Firstly thanks for all the replies... I run an indoor natatorium with 3 bodies...main, training and spa. 24/7 circulation is required on all of them, with the main running at ~500 GPM open vacuum, training at ~150 GPM pressure and spa at ~100 GPM pressure. (All DE filters) I have skimmer...

Wow, that really does make a lot of sense...point clearly taken. Will adding CYA create a disinfection problem seeing that I'm running a commercial pool with a swim team in it everyday? I may be misguided on the strength of chlorine... I've also heard of these non-cl shocks, but will they make...

Hey all... Shocked my pool recently, CC was up to .8. I checked multiple sources and they all came to the same amount of a little over 13 gallons of sodium hypo (I run a 200,000 gallon indoor pool). I dumped 15 gallons for ease of measurement and assurance of reaching the breakpoint, and I also...