Liner Wrinkles

[pureluck32]

I have an 18 x 36 inground pool with a vinal liner and salt system. There has always been some wrinkles in the liner but it seems this year they are getting bigger. The liner is not pulling off the wall. They are almost 1 inch in some areas. I also have a second issue, I am starting to get a brown stain on the liner under the water in the corners on only 1 side of the pool going down toward the deep end. Any good way to clean them? The pool is crystal clear and chemicals correct.

[LinerMFGr]

Pureluck32, there are basically two reasons a liner can develop wrinkles over time. One is improper pH levels. An elevated pH will cause the liner to absorb water and wrinkle like your toes when you stay in the bath too long. The other is if your liner has gotten water behind it or "floated". We had a very wet late-winter in the North East, and we've seen a lot of this happening.

If the wrinkles are in the shallow end of the pool it is sometimes possible to use a plunger to get the wrinkles out. You don't want to try this if the liner is over 4 or 5 years old. An older liner doesn't have the elasticity a new liner has and may rupture if you try plunger it.

And sorry, I don't have the expertize to help you with your brown stain.

[dscriterium]

The stains need to be properly identified before a treatment can begin. Can you post a set of water test results? That will help identify the stain more quickly.