Cyanuric Acid

[Watermom]

Heck, most of the time, they'll sell you one of everything on the shelf if you seem willing to buy it. Do you need it? Doesn't matter a lot of the time. They'll still be happy to have you walk out with it.

(Not all pool stores are like this, but too many of them are.)

[CarlD]

Use a garden hose as a syphon. As long as the outlet is below the inlet water will flow.

[Sue225]

Well we dumped 1/2 of pool water and are in the process of refilling. One question, the liner looks like it is rippling. Is this normal? Also. there is 0 chlorine in the pool. Should I add some bleach? Will it be OK through the evening and night. Looks like we have about 8 hours left to complete filling.

[polyvue]

Well we dumped 1/2 of pool water and are in the process of refilling. One question, the liner looks like it is rippling. Is this normal? Also. there is 0 chlorine in the pool. Should I add some bleach? Will it be OK through the evening and night. Looks like we have about 8 hours left to complete filling.

As it is refilling, try to straighten out any wrinkles. I don't have a liner pool but I've read that some people have used a clean toilet plunger to remove them.

As soon as the pool is filled, re-test the CYA level and add sufficient liquid chlorine or 6% bleach to increase Free Chlorine to about 7% of CYA. E.g. If the test result indicates CYA= 50 PPM, add enough bleach to your 15K pool so that Free Chlorine is about 3.5 PPM. Or just go by this chart:

The Pool Calculator is handy for estimating chemical additions.

[Watermom]

I asked Carl to talk to you about your liner rippling . He'll be better able to help you with that than I will. As far as FC of 0, you need to get some bleach (maybe 3 quarts) in there so you don't end up with a green pool. Just pour it in front of the hose so it will quickly disperse throughout the water. Then, once it is totally filled, run a complete set of numbers again and post them. May need to add more cl in the morning if you are below about 5 -- assuming that your cya will be around 50. If it is different than that, refer to the "Best Guess CYA Chart" to determine how much chlorine you'll need.

[CarlD]

You can sometimes move the liner with a toilet plunger, but obviously get a new one If there's too much water in the pool it may not work.

[Sue225]

Since I have just dumped 1/2 the water in our pool and refilled I will not be buying a new liner this year! All of the puckering kind of smoothed out and I have a few wrinkles which I can live with. New liner is on the list for next season. I will be getting the readings on the pool since the refilll in about 1 hour. Will post them asap.
I have ordered the testing kit you recommended. Will be glad when it arrives, probably Monday.
Thank you for helping me!!