Thin Colorless Film around walls and bottom of pool

Kuga

Member
Nov 6, 2019
10
Washington
Hello,

I currently have a thin layer of some type of white/colorless film around the walls and bottom of my pool. When I go to wipe it, you can clearly see where I was able to remove some of it. It feels a bit slimy or slippery at first but then goes away quickly when wiped with my hand. Brushing and even with using gloves doesn't seem to remove it, comes off easiest with my hands.

Im currently in day 3 of the SLAM process. Passed the OCLT with a .5 last night, and water is clearer than its ever been, but the film is still there on the walls and bottom of the pool.

Test results were as follows:
FC: 10
CH: 350
ALK: 70
CYA: 20, added 10PPM worth of granular through skimmer 3 before I started slam 3 days ago.

Any ideas what this might be or what I can do to fix this?

Thanks!
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
13,784
Evans, Georgia
I wonder if its the CYA you tossed in the skimmer?? It can feel a bit greasy at times when dissolving, but I've really never heard of this condition with it before to be honest. Brand?
I'd stay at SLAM level and brush, brush, brush to get whatever you're feeling into circulation.
Do another CYA test.
What's your pH??

Maddie :flower:
 

Kuga

Member
Nov 6, 2019
10
Washington
The flim on the walls was already there before I added the CYA so I doubt that was it. It was a chlorox brand I bought at Walmart.

I was thinking I just didnt give it enough time but wasnt sure, and hoped someone else might have experienced the same thing.

PH was 7.4 before the SLAM. Haven't tested it since.
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
13,784
Evans, Georgia
Did you by chance use Clorox brand bleach too?? Or any that advertises "Cloramax Technology"?? We always say to get *plain* bleach. Non-scented, non-thickened, no additive stuff.

Go get some 10% Pool Essentials liquid chlorine from Walmart and use that and continue to brush and SLAM. It should eventually go away.

Maddie :flower:
 

Kuga

Member
Nov 6, 2019
10
Washington
Hmm, that could be it. I did use the cloramax bleach, I was questioning it to, guess I should have done more research. Ill make sure to get the plain stuff for now on. Thanks!
 

duraleigh

Admin
Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
In The Industry
Apr 1, 2007
34,043
Sebring, Florida
Did you brush it off? If not, do so, If you did and it has come back, brush it again.

Brushing the pool is the most neglected thing when people attempt to SLAM. If you are having trouble brushing it off, get a stiffer brush.
 

Kuga

Member
Nov 6, 2019
10
Washington
Did you brush it off? If not, do so, If you did and it has come back, brush it again.

Brushing the pool is the most neglected thing when people attempt to SLAM. If you are having trouble brushing it off, get a stiffer brush.
I've been brushing every day but it doesnt seem to come off when brushing no matter how hard I do it, only when I wipe it off with my hand, its really odd.