OK, First time using the TF-100 kit. I fill the CYA mixing bottle under the label, I add R-0013 to above the label. Shake, wait 30 sec, shake, I then hold C A tube at waist and slowly fill. So when the black dot disappears, that is my reading? Does the water become cloudy in the tube? I filled the tube and still could see the black dot. What am I doing wrong? Or is it that my CYA level is very low and need to add some?
Testing CYA with TF-100
- Thread starter sd72667
- Start date
If it's staying clear you don't have much CYA. The water will be cloudy. The more CYA, the cloudier the water.
svenpup
LifeTime Supporter
That just means that your CYA is 0. What is the background? Is this a new fill?
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svenpup
LifeTime Supporter
Tap water doesn't have any CYA, so that is normal. You should add 30-50ppm right away to protect FC from sunlight. Without any CYA your FC will be gone in a matter of hours.
You should always get a reading for pH, CH, and TA. FC can be 0.
You should post a full set of numbers to get feedback.
How are you chlorinating?
ETA: To clarify, FC in fill water may measure 0 or low...you should never let it go to 0 in your pool. Ever.
You should always get a reading for pH, CH, and TA. FC can be 0.
You should post a full set of numbers to get feedback.
How are you chlorinating?
ETA: To clarify, FC in fill water may measure 0 or low...you should never let it go to 0 in your pool. Ever.
I have a SWG for adding chlorine. I have to head to work now but I will add the CYA early tomorrow. Where exactly does someone purchase CYA? Any Pool store?
svenpup
LifeTime Supporter
Pool store will definitely have it. Home Depot/Lowes/WalMart if they have a pool aisle. It is also called stabilizer.
With an SWG you actually want more...70-80ppm.
With an SWG you actually want more...70-80ppm.
I actually have a pool store 2 miles from where I live. So I ran down there and purchased the stabilizer. It says 1LB per 5k gallons. I added it to a sock and tied a knot and put it in the skimmer for now. How long before it starts raising the CYA? and dissolving?
About a day or two, but wait a week to test.
Now would be a good time to add pool details to your signature so we can help you better
Now would be a good time to add pool details to your signature so we can help you better