Is there an ideal cyanuric acid level?

[robbym70]

This is CYA related but not sure if I should start a new thread??

1. Buy a K2006 and find out what your CYA level really is -- you'll have to do a 1:1 dilution with tap water, test, and then double the reading.

@ PoolDoc-What does you mean about the 1:1 dilution. I have a K2006 and I think my test method involves filling the sample tube to about half full then balancing it off with the regaent....then transferring to the comparator until the black dot disappears from above.

I don't understand your reference to the 1:1 dilution. Am I missing something?

My CYA has been consistently below 30 (black dot always visable) since I've been testing. This year I want to address this by adding stabilizer to bring it up to the recommended ~ 40-50 ppm.

Would it better to run with Trichlor pucks to bring up the CYA level or simply place stabilizer in the sock and place it in front of the return.

Since opening I've been using Robelle Shock Treat which is 12.5% Sodium Hypochlorite. I'm adding about 1/2 gallon every three days or so and this keeps me somewhere between 3-4 ppm for FC. When this runs out I was planning on switching back to 6 % bleach.

The water is sparkling clear at the moment. I've been following BBB since we bought the pool (uh, I mean the house) Last year (my first with the pool) I opened to a green mess but with the help and advice listed within this forum it cleared up in 2-3 weeks. Lots of bleach, a little polyquat and the much needed POP!

The former owner used and left behind a big tub of trichlor tabs. I used them up last year (about half the tub ) If the previous owner used these pucks regularly why is my CYA so low. Did the green mess last spring bring it down to zero somehow...and wouldn't the month and a half or so of using the triclhor pucks have brought up the CYA so it at least registers on the test?

No real urgency on this as I know you are busy with real pools in real life.

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23,000 Gallon AG - 30' round
Vinyl Liner
1 HP Hayward Power Flow LX
Sand Filter

This is CYA related but not sure if I should start a new thread??