Testing CYA w? TF-100

Andiejj

Well-known member
Jul 19, 2007
188
0
Katy, TX
#1
UGH! UGH! UGH!

Okay, got the test last weds the 25th and tested. CYA was not registering (filled the tube all the way to the top and could still see the black dot - clearly). Added CYA that night. Tested agin this afternoon and once again it is not registering the CYA. Their was a slight difference in the water in that it was a little cloudy but I was still able to see the black dot. What should I do??? BTW -

Clean and clear water
FC 7
CC 0
TC 7
pH 7.6
T/A 90
CH 210
CYA 0
temp 89

**last week I added CYA, CH, MA and Baking soda (not in the same day) to tweak my numbers on the other stuff.

Please help, I do not know what to do or maybe I am a moron and not doing the test right although I am following all the instructions. UGH!
 

Andiejj

Well-known member
Jul 19, 2007
188
0
Katy, TX
#3
I added 3.5 lbs in a pany hose and placed in the skimmer. I did it in the evening and ran my pool all night. By morning the hose was empty.
 
G
#4
CYA can take up to a week to dissolve, even if non is left in the panythose. Give it a full week and retest. 3.5 lbs should raise 10000 gallon to between 30-40 ppm so if your pool is acually a bit bigger than you think it might not be enough to fully register.