My pool had a rough winter.
A pipe from the filter froze and burst (yea... sloppy closing).This caused about 1/4 of my water to drain, and it was filled with rain water.
Decided to get an early jump on it.
First test showed CYA near 0. (Probably about 10).
So I finally had a chance to use some dichlor that I had lying around.
Added about 2 quarts of acid... got the pH to about normal.
Current numbers are:
pH between 7.6 and 7.7
I'm pretty happy with my CYA. I have some trichlor pucks in there to trickle it up some.
I'm going to notch up the TA a bit with some Borax while adding acid to keep the pH in line. Maybe shoot for 80. (Pool store said my borates were 16)
Try to maintain shock level with bleech.
So, yea... I went to he pool store... mostly I wanted to get a reading on my borates. Shocking how off their readings were.
First they said I had 0 CYA. When asking how that could be with the dichlor I added, they said that it is sometimes consumed during the process of eating algea. I asked if it could sometimes take awhile to register... NOPE... was consumed by the algea. I asked if they could do an ammonia test. Nope... no reason to.
My TC was 7.5, with 0 FC. (My test showed I had 13FC with 2CC).
They had 117 TA, where I showed 70.
But, according to them, all of my readings were moot. My TDS were about 3500, and I needed to get them down by replacing 1/2 my water!
Asking why, it was explained that TDS gets in the way of sanitizer, and makes it less effective. (Nevermind that I have taken my water in there in the past, and they were perfectly happy with a CYA of 100).
Anyway, I was wondering if there was any truth to any negative impacts of high TDS. Or if I should just continue ignoring the pool store.