CYA Mystery

[Vinnyjeep]

Hello.. to make a long story very short, I have one question. Some background 1st. Last summer (I live in NJ) I recall my CYA level being extremely high on the test strip. To be honest, I never really monitored it since I wasnt educated on what it does, and what harm is can do when very high. I was using stabilized shock weekly then, and tabs in both skimmers at all times. Fast forward to this spring, and throughout this summer, I have been in a chlorine demand situation for months. I have tried to slam on 3 occasions for only the FC to be gobbled up each and every time. (Please note I switched to liquid chlorine this season). Here is it August, and I still have the same issue. CYA level has been very low this season, about 20-30.

Now to my question. Is it possible to have super high CYA levels, and yet test strips and pool store diagnostic tests show low or normal CYA?? I am asking because I am at a loss, I don't know what else to do to fix this chlorine demand issue. I am the point that partial draining of the pool needs to be done. Could it be that the water is so old, that I am stuck? I have managed PH and akalinity all summer just fine, and occasional bouts with algae, but due to the lack of FC.

Any help or guidance on next steps would be so appreciated. PS my fear is that I close the pool in Sept, and come May next year its going to be a cesspool!! thanks!

 

[PoolStored]

Welcome to TFP!!!

I would start with your own test kit. Strips and stores aren't accurate and reliable. Link-->Test Kits Compared

Further, I would start here from an education perspective...great info: Link-->Pool Care Basics

Proof is in the pudding. Link-->How Clear is TFP Clear?

When you get your kit, post up results and we'll work on your CYA and chlorination!

 

[cledee]

Try and also fill out your signature which shows your pool type, size, pump, filter, heater, how you chlorinate, ect.
From personal experience the test strips and pool stores were always at least 20-30ppm off which could make a big difference but the worst I've seen is a test came back as 60ppm in one store, I went to another store and it read 120ppm, I went to a third store and it read 230ppm so this is why it's recommended to get one of the suggested test kits that @PoolStored linked.

 

[Newdude]

Hey VJ and belated Welcome !!!

Myself and Poolstored above use Taylor drop based kits. (And most the rest of the forum). If you use them too, it's literally like we are standing beside you and can guide you with what to do.

We do it for folks around the world on the daily, if we are all on the same page. Check the TFP clear link above. Those are all regular Joe's/Jane's who 'failed chemistry' and never even attempted rocket science.

Poolstored's pool looks like it's empty.




And I struggle to get pics of my pool floor so I make gifs instead.




We got you.