Best way to add granulated CYA?

ThePez

LifeTime Supporter
May 2, 2008
26
Virginia Beach, VA
I put some in the skimmer, but I know some of it goes through the skimmer basket to the filter basket. Should I be putting this stuff in something? or is it cool for it to go through the pump?
 

pooladdict

TFP Guide
In The Industry
May 14, 2007
819
New Brunswick Canada
As far as I am aware, and some other experts will chime in, but I believe the idea is to get the granular product stuck in your filter, then slowly it is disolved and released, if you just poured it into your pool, it would continue to circulate or rest on the bottom until disolved.

Hope I am right on this.
 

Damian

New member
Apr 19, 2008
2
Kentucky, USA
I use cheap knee-high stockings from the grocery store for this. (39 cents per pair). I can normally fit around 4 pounds of CYA in one stocking.

I fill the stocking up, tie the stocking to the end of a pole, and dangle it in front of a return. The movement of the water by the return normally disolves it all in around 3.5 - 4 hours.
 

duraleigh

Admin
Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
In The Industry
Apr 1, 2007
32,853
Sebring, Florida
Two very fine posts from pooladdict and Damian (welcome, Damian).

Short and concise and very accurate. We need more posts like that!! :lol: :lol:
 
G

Guest

Sorry to bust a myth but CYA is very slow dissovling. It might appear to dissolve in a few hours but it's really just dispersing in the water and it can actually take up to a week and this is confirmed by testing the level. It is not uncommon for the CYA to disappear from a sock but it does not show up in the water for several days. It's still getting caught in the filter and slowly dissolving.
The EASY way to add CYA is:
1. Clean your filter if it needs it since you won't clean it for a week after you add it.
2. Pour it into the skimmer slowly with the pump running and run the pump 24/7 for the next 24-48 hours.
3. Test your CYA a week later.
 
G

Guest

pooladdict said:
As far as I am aware, and some other experts will chime in, but I believe the idea is to get the granular product stuck in your filter, then slowly it is disolved and released, if you just poured it into your pool, it would continue to circulate or rest on the bottom until disolved.

Hope I am right on this.
EXACTLY right! :-D
 

ThePez

LifeTime Supporter
May 2, 2008
26
Virginia Beach, VA
good thing I did it the easy way. will test again next week. yesterdays CYA test was to low to read, the water clouded up a little but I could still see the dot after using the entire solution.
 

JasonLion

TFP Expert
Platinum Supporter
LifeTime Supporter
May 7, 2007
37,879
Silver Spring, MD
Damian said:
The movement of the water by the return normally disolves it all in around 3.5 - 4 hours.
Keep in mind that the CYA may not really dissolve completely, even if it vanishes from the sock. The CYA crystals break down into pieces small enough to get through the sock but they are often still in a very fine sand like consistency and not completely dissolved.
 

rkolb

Member
May 26, 2008
6
Is there a problem adding CYA to the skimmer if I have a heat pump hooked up after my pump and filter? If the CYA gets stuck in the filter, after it dissolves it will be flowing through my heat pump - wondering if this will be corrosive?

Randy
 
G

Guest

It is not a problem. CYA doesn't have that low a pH. It is around 4. For perspective, orange juice has a pH of around 3.5, tomato juice around 2.5, and diet soda around 2.