Film on pool

Pvpool

Active member
Sep 30, 2013
43
Bettendorf, IA
We recently opened our pool and have a film on the top of the water (pic attached). I’ve never seen this before. We have had the pump running nonstop for five days so far and the water is still cloudy and this film is floating on the surface. My recent test results are below. Any ideas on how to get rid of this?

FC 7.5
CC 0.5
pH 7.2
TA 70
CYA 30
 

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mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
37,016
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
This a phenomenon seen in the past on pools using a SWCG, cold water, and just being opened after winterization.

We have never nailed down what causes it. Chemistry does not seem to effect it. In time it goes away.
 
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