After lurking on all the various forums I am diving into BBB!
I have had tremendous algae problems. My pool maintenance company just "fired" me. Too hard. (I think they were spending more on shock than I was paying them.)
My pool (27,000 gallons, Polaris 380, DE filter) is blue today! I just completed a green to clean prescription from my local Leslie's.
I followed the instructions and shocked with 4 bags of power powder plus (calcium hypochlorite) just after adding the g to c and then 12 and 24 hours later. The pool is blue but very cloudy.
I am about halfway through adding 14 boxes of 20 MT Borax. Eight boxes so far plus acid to keep the pH at about 7.9.
I will let that sit overnight and proceed in the morning.
I just went to Leslies to get the water checked - half way through.
The chlorine (FC and TC) is still way up - 5+ is all they would say. Purple + on my test strip.
I have ordered the borate test strips so that I can fine-tune the finish line with the borate.
I don't know why the CYA is so high. The pool was drained and refilled about two years ago for repairs.
CYA must have been added in excess. I asked them to test it again which they did with a micro test cubicle and it was still high.
Do I need to be concerned about the high CYA? I gather from the forums that that might be why my chlorine isn't working or why I have algae problems.
If I need to drain off water to lower the CYA I guess I should stop adding the borate until this step is completed?
Or ... since I am switching to liquid chlorine (from Sam's Club today) should I just let it go down naturally as I backflush the filter over the next few years?
I suppose the cloudiness is from the calcium in the power powder or the algae carcasses.
I am running the DE 24/7 so I expect that will eventually be filtered out.
I am not seeing much enthusiasm for floculents on the forums.
I did add about 40 oz of Polyquat 60 (from Leslie's).
I know that I should get a better pool water test kit but I am expecting to use the strips and stop by Leslies (just up the street) once a week or so for now.
Thanks for any comments or advice.
I will let you know how this is working for me.