My CYA is 90

JasonLion

TFP Expert
Platinum Supporter
LifeTime Supporter
May 7, 2007
37,880
Silver Spring, MD
Which CYA test are you using? Many of the common tests will report any CYA level over 100 as 100, and it isn't that difficult to mix up 90 and 100.
 

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
43,260
Tucson, AZ
What are you using to chlorinate your pool? Perhaps you are continually adding the CYA as well.

My guess is it was well above 100ppm and that you have not changed enough water.
 

ran527

Member
Jul 24, 2011
6
JasonLion said:
Which CYA test are you using? Many of the common tests will report any CYA level over 100 as 100, and it isn't that difficult to mix up 90 and 100.
i USED THE CYA TEST KIT PURCHASED FROM THIS SITE. i DID THE TEST 3 TIMES AND CAME OUT WITH THE SAME RESULT--90 CYA. MAYBE I SHOULD DRAIN MORE WATER??
 

ran527

Member
Jul 24, 2011
6
jblizzle said:
What are you using to chlorinate your pool? Perhaps you are continually adding the CYA as well.

My guess is it was well above 100ppm and that you have not changed enough water.
I AM USING THE CHLORINE PUCKS AND POWDERED SHOCK. I DRAINED A FEW INCHES. THE POOL IS 16 X 24 INGROUND WITH 6 FOOT DEEP END. SAND FILTER. FC IS 0
 

ran527

Member
Jul 24, 2011
6
GreatCanadian said:
How much water did you pump out? If you pumped out and refilled, you lowered your CYA. Perhaps it is as Jason said above.

I PUMPED OUT A FEW INCHES..THE POOL IS 16 X 24 WITH A 6 FOOT DEEP END. THE FC IS 0.
 

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
43,260
Tucson, AZ
ran527 said:
jblizzle said:
What are you using to chlorinate your pool? Perhaps you are continually adding the CYA as well.

My guess is it was well above 100ppm and that you have not changed enough water.
I AM USING THE CHLORINE PUCKS AND POWDERED SHOCK. I DRAINED A FEW INCHES. THE POOL IS 16 X 24 INGROUND WITH 6 FOOT DEEP END. SAND FILTER. FC IS 0
ding ding ding .... all those pucks and powdered shock (dichlor?) are adding CYA. You need to only be using liquid chlorine and drain/replace a lot more water.