The AGP construction project continues- hopefully it finishes this weekend. I printed out poolschool articles and have read them repeatedly. My local water is alkaline- Ph 7.6-7.8, TA 80-90, CH 70 with a minor amount of chlorine in it TC=4. This is using a TF100 pool test kit.
Now, it is burning hot here in Texas, and the pool will be in full sun most of the day, and I am going to be aerating to cool the water with a fountain (water is coming out of the tap at 85 degrees), and the water evaporation rate is very high (my friends in this area go through a lot of water, even with inground pools), so I gather that, unless I get some CYA in the pool, I will go through a LOT of chlorine.
I have a 25 lb tub of 65% cal hypo granules for shock, and I understand about using bleach as a regular chlorine source, but I am a little vague on how to get the CYA in there. I gather I can go to the pool store and buy CYA, but I have also read that I can use di-chlor or -tri-chlor, which will add some CYA along with chlorine, as well as bring down the pH and TA some. I also have in hand 2lbs of 99% Sodium Dichlor-s-Triazinetrione from the pool store. I was told that I should add that at starting the pool at a dose of 1lb per 10,000 gal. Does that sound about right? Do I mix that in water and pour into pool with the pump running like I would cal-hypo, or add into skimmer?
I understand that I do not want to make a habit of di-chlor or tri-chlor to avoid overdosing on CYA, (same as I do not want to overdose on cal-hypo, I just want use up the tub that the pool store talked me into) but it sounds like di-chlor might be a good way to get started to get a balance. Does that make sense? I am not excited about the whole adding muratic acid thing- sounds pretty scary.
I had originally planned on starting with PristineBlue but between reading what is here on TFpool.com and reading the PristineBlue support forum, I am thinking about seeing if the pool store will take it back. So now I need another plan. I am thinking about SWG eventually, because the ideal TA and ph levels are closer to my local water supply, but until I make a decision to expend that money, I need to know how to start my pool on the right foot so that I can swim right away and survive a rough summer. Please help?