I am having trouble keeping algae from growing. CYA is way too high 150 range Here is what I don't know and could use some help
A recommendation from TFP was to add Borax ( 20 mule team ) to save on chlorine and keep the pool sparkling. I have done that and have about 30 - 40 ppm of borax in my water now. I have a SWG pool and have the water looking beautiful but have to keep chlorine very high 5-10 and shocking too often to stop algae from growing on the side. Any ideas
I also have way too much CYA up at 150-200 level. Could the borax be acting like CYA and causing me to have high readings. Are they two separate items. Something is eating my chlorine and algae wants to form on the side. Today I had too much combined chlorine at .6 so I just super shock the pool and turned my SWG off . I have been gradualy draingong/backwashing to lower the cya. I think it came from using Di and TRi Shock from Lowe's for too long.
PH is 7.4 , total A is 100 and hardness is 250
Pool is gunite and kidney shape about 8,000 gallons 20 feet by (19 -12) average depth about 4 feet--was chloride until I converted to SWG