Is there a way to calculate CYA includes with dichlor?

[mgianzero]

I've seen a lot of postings about concerns about too high CYA levels when using chlorine products. I seem to have the opposite problem.

I have a SWG and often times my CYA always tends to drift downwards thru the course of the year (more so in summer). So I find I need to add more conditioner. But I find conditioner to be expensive. Also, I also like to shock my pool with dichlor, as it raises my chlorine level quickly, dissolves fast, and also bumps my CYA. So how can I calculate how high my CYA level will rise with dichlor? I don't really see any mention of how to calculate this anywhere.

Marc

 

[jblizzle]

look at the bottom of the poolcalculator. It will tell you effects of adding chemicals to your pool.

Posted from my Droid with Tapatalk ... sorry if my response is short

 

[y_not]

How come you are losing CYA throughout the year?
Excessive backwashing, splashout, leak? Ammonia producing algae?

CYA doesn't evaporate with the water, it's just like salt, it stays behind.
It's normal to lose some, or even all of it over the winter if you get bacteria or algae in there that eats it, and you loose a little from normal splashing and backwashing.

But you shouldn't be losing a whole lot, just a little.

 

[chem geek]

As was mentioned, The Pool Calculator will tell you the effects for adding chemicals. For every 10 ppm Free Chlorine (FC) added by Dichlor, it also increases Cyanuric Acid (CYA) by 9 ppm.