I recently purchased a house with a gunite pool and had been struggling with algae. At the suggestion of everyone on these boards, I went out and got the Leslie's FAS-DPD test kit. My first results are as follows:
FC - 18 ppm
CC - .2 ppm
pH - 7.3
TA - 95 ppm
CYA - 55 ppm
CH - 280 ppm
I have a 14,000 gallon pool according to the Pool Calculator and I had been using an inline chlorinator with trichlor tabs but as per the BBB method, I have turned it off. It seems like my FC is higher than it should be. I used two pounds of Power Plus Powder last weekend to shock the pool after seeing some algae and the inline chlorinator has been running all week. The majority of the algae is gone. I had expected to need to put in some bleach this weekend, but that doesn't seem to be necessary. That said, it seems as though my CYA is higher than I'd like it and perhaps I should drain the pool somewhat before I begin the BBB method. Will the FC levels just go down on their own? I had planned to spend this weekend following the Turn-Your-Swamp-Into-a-Sparkly-Oasis procedure by adding bleach and measuring FC loss but that doesn't appear necessary.
The water looks very clear but when you brush the bottom there is a lot of white dust and certain pockets of green dust. The skimmer throats, for instance, are very green still. CYA is too high for the FC to work all the way? I should add that I'm in Dallas so there's no shortage of sunshine.
My real problem now is that whatever skimming/circulation system my pool is supposed to have doesn't work correctly as there is a ridiculous amount of leaves and berries and other arboreal detritus on the surface of the pool and lining the waterline all around the pool. But I figured I'd handle the chemistry first and deal with that problem next.
So to inaugurate my adherence to the BBB school of thought, where should I go from here?
Thank you in advance,