So we got about 5 inches of rain last week and it overflowed the pool and turned the water bright green (it does that every time we get heavy rains.. not sure why, I don't think it's algae because my chlorine usage doesn't increase... I guess it's gunk getting washed off of the leaves from the large Oak hanging over the pool or stuff washed in from the yard). 72 hours of running the pump has the water cleared up (just slightly cloudy actually). I thought I was done cleaning the filter for the winter, but I have to do it again now!
At any rate, I tested my water and need to adjust multiple parameters. I know generally what I need, but not sure in which order.
CL = 5
FC = 4.5
pH - 7.8 (needs to come down)
TA= 60 (needs to come up)
Ch = 160 (needs to come up)
CYA = 60 (needs to come up about 10 although not critical in the winter)
Borate = 30 (needs to come up to 50-60 although not critical in the winter)
Water Temp = 72.
So I know I need acid to lower pH, Baking soda to raise TA (but that will raise pH back up), Calcium Chloride for the Ch and eventually borax (which will raise my pH back up). My question is, what do I do first? I'm inclined to add the baking soda first, but then my pH will be way up and I'll have to add more acid which will bring my TA back down? I think I can raise my Ch any time. I'll probably dig into my stash of Dichlor and use about 3lbs of that over the next week to bring my CYA up and then wait until spring to tackle the borates.