My under shed pool is currently running on Cal-Hypo and Trichlor. I switch off my SWG because I need Cal-Hypo to raise my CH and Trichlor to raise my CYA. There's no Calcium chloride , stabilizer or CYA available here. I still have 10 kg (22lb) of Cal-hypo and 4 lb of Trichlor to go before I switch back to SWG.
My #s are:
Borate I assume as 0 as new pipe fill water 3 months pool
My CSI shows -0.25 which is OK but my pH is going up from 7.8 last week.
My SWG recommand the following #s.
FC 1.0 - 3.0
CH 200 -300
pH 7.2 - 7.8
CYA 40 - 60
TA 100 - 120
So what should my target be when I resume my SWG. I run my SWG at 60% 4 hrs a day before I get my CYA and CH in so after getting my target of CYA 40 and CH 200, I expect my SWG to run 40% 4 hrs or less a day. All my 44 GPM water from my pump are via a 2 foot high waterfall. So does that produce alot of outgassing and aeration? After hitting CYA 40 I will check my Cl loss due to the little sunlight before proceed to CYA 60.
My pH drift had been quite nominal, took about 2 months to increase from 7.8 to 8.2 (without Trichlor and Cal-hypo). I definitely need acid to reduce my pH, right? As we don't have muriatic acid around, I can only get dry acid (liquid 33%), powder ( concentration to be confirmed) and pH minus. Which is the ideal form to use? I belief the powder one will last me longer under storage and they come in 11lb and 55lb pail.
I cannot get Borate for my pool except from laboratory supplier which supply Sodium Tetraborate Decahydrate (10h2o). Would anybody recommand using such borate and what quantity would be sufficient to 30 ppm?
My pool water are sparkling but I am trying maximise my pool equipment life and reduce my long term chemical use, meaning, optimise everything where possible.
Any recommendation d suggestion will be greatly appreciated. Thanks.