Hello! So, I purchased a home about two weeks ago that has a pool. The pool itself looked fine, but as they say, looks can be deceiving! So, I waited until I tested the pool, and the results were a bit disconcerting. Essentially, while my pH and TA appear to be alright (maybe a tiny bit low), my stabilizer and chlorine were off the charts. I was a bit stymied by this, and purchased a Taylor test kit as well. The Taylor kit essentially confirmed what I saw, as I got up to about 15 ppm in the free chlorine test before the water started losing its pink hue. For the stabilizer test, the black dot was invisible after barely any liquid was added to the tube. Essentially, I had confirmed what I hoped wasn't the case... I have too much chlorine and stabilizer. I've Googled the living daylights out of just about anything relating to pools, and from what I can tell, my only solution is to perform some partial drain and refills (it's a vinyl pool), but I've run into a bit of a snag. This is what my pump setup looks like, and I have absolutely no idea which valve handles what function (it looks like there used to be labels). My guess is that the left two represent the skimmer and the drain (I'd still have to figure out which is which), but I'm not too sure.
As for what I've done to the pool since owning it, the majority of my work has just been keeping it clean (skimming, brush, empty skimmer, and using a cleaning robot). Over the two weeks, I had put in a single chlorine tablet (into an empty chlorinator) and half the amount of shock required for the pool size (1 bag rather than 2). Adding the chemicals really wasn't needed, but since nothing that I've done could've elevated the levels that high, I called the pool company that the previous owner used. I asked them why the levels were so high, but I never really got an answer.
So, I guess to sum things up...
- New-to-me pool has very high levels of FC and CYA.
- Assume the best measure is to perform partial drain and refills.
- Apart from the sand filter's spider valve, there are no markings on the pool valves.
Thanks for any help that you can provide!