Vinyl Pool Wall Very Rough


New member
May 31, 2010
Used our above ground pool for 1st time today. The vinyl pool liner wall feels like sandpaper. I used a brush but it did not have any results..still very rough. Any thoughts as to what could be causing this? Is there a fix? The liner is about 3 years old. Pool is 52 inch deep and 28 foot round.


Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
In The Industry
Apr 1, 2007
Sebring, Florida
Hi, Mike,

Welcome to the forum. It's a guess but the most likely cause is calcium scaling....the result of very high pH over a long period of time.

Posting current test results may give us an indicator but the water may have been balanced by now.

A possible cure may be to CAREFULLY lower pH to 7.0 or so and see if the deposits eventually dissolve.


New member
May 31, 2010
Appreciate your welcome to forum....and thanks for you thoughts on this. I will give it a try. The pool is balanced. I've been running filter for 3 weeks...had quite a bit of green algae..I did not cover pool for winter. I will take my water in for testing and post back results. I did add quite a bit of chemicals after the first few get lined out. The water has been milky for 3 weeks now...pool shop said would clear up when we got in pool. We had quite a bit of use over weekend that is how I found rough walls..still cloudy. Thanks again!


New member
May 31, 2010
Tested pool this afternoon here are my results:
Temp: 75
Sat Index: -0.5
TDS: 100
CYA: Not tested
Tot.Chlorine: 1.3
Free Chlorine: 1.3
pH: 6.8
Tot.Alkalinity: 156
Adj. Tot. Alk: 156
Tot. Hardness:241

Pool water is clear about 1 foot down, and then is still very cloudy..cannot see bottom.