Quote Originally Posted by famousdavis View Post
I checked the SWCH plates and sensor yesterday -- first time ever since getting our pool last May! -- and the sensors were spotless, the plates had no build-up of any gunk that I could see.
Of course they were since you have been running a negative CSI for a while and have aggressive water that will dissolve calcium.
I'll check on that again since I'm running higher calcium now, to ensure the plates and sensor stay clean.
They should. If you check the CSI range for the parameters I gave you will find that it ranges from about -.3 to about +.24 which is balanced water! (This is with the TA at 70 ppm. At 80 ppm the water will have a bit more tendency to scale so you might want to think about dropping the TA by 10 ppm since , if you are not overdosing on acid, your TA should stay fairly stable for a while.)
And there was no pink slime to be seen anywhere in the pool this weekend. Lookin' good!
Use you acid demand test to get an idea of how much acid to add. I measure the acid into a plastic measuring cup that I put on a plastic dinner tray. If any spills I jut push the whole tray into the pool. One you get used to how much acid your pool takes you can eyeball it pretty close but you really should measure at first. If you don't want to measure acid then get a gallon jug and fill it with water and measure that to get your eyeballing of the acid more accurate. It's just practice.