I have been lurking and reading all I can on how to maintain my pool. We recently bought this house with a pool and I have never had one to take care of. I have been taking a sample to the pool store and they test the water for free. Note that I always leave with instructions to buy this or that and add it to the water.
I found this site and started to educate myself and would like to use the BBB method. The pool water is clear and does not have any odor nor does it burn my eyes. I have a rainbow 320 using trichlor tablets. I just replace the original 320 since the metal check valve rotted out and the plastic was brittle. I set the control to 1 and the pump runs about 8 hours daily. I also plan to replace the pump with a variable speed unit since it appears the payout is less than a year in the Houston area.
I received my TF-100 today and tested the water.
Water Temp 78F
The CL/CYA chart says my CL at 6.5 is to low, target should be 12.
PoolMath tells me to add Borax 79 oz to increase the pH from 7.3 to 7.5
To lower the TA, PoolMath says to decrease pH to 7 and aerate.
To lower CH from 375, it recommends replace 30% of the water.
To lower CYA from 100 to 40, it recommends that I replace 60% of the water.
And the kicker is that it wants me to lower Borate by replacing 20% of the water.
So, I'm confused. Where do I start? Do I need to drain 12,000 gallons of water and replace it?
I'm a M.E., not a Chem. E.