What is this gray foam?

af03gr

New member
Jan 27, 2021
2
Ontario, Canada
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Jandy Truclear / Ei
Hello all,

This is about the fourth time this summer that we have found this lump of gray foam floating in our pool. We thought it was poop until we gloved up and opened it. It was the consistency of polyethylene foam, with the same kind of cell structure (pourous).

I'm not sure if it's a pool chemical balancing issue (chemecials are within range). It also seems to appear most often after a significant rain. I also know it is not an animal because I dropped my security camera down to ground level and it captures everything around the perimeter of the pool.

Key stats: vinyl liner, salt cell onground pool. Cartridge filter (1 year old). The only other problem are mineral staining on the pool stairs.
 

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