Can you spray Diatomaceous Earth to the filter membranes?

[105ex]

Thank you for the replies.

I have tried both dumping the powder as well as the diluted DE into the skimmer and very slowly. Sometimes I'd notice that there'd be some that go back out through the pool returns, i.e. back into the pool.

That's why I was wondering how people ensure the DE gets applied evenly to the membrane.

Is it normal for some DE to go back into the pool? Or does that mean there's something wrong with the filter or with how it's re-assembled?

[Sumo1]

I don't think there's anything wrong with your grids. I see evidence of a little blow by in my pool, too. When the grids are clean and suddenly this almost liquid material flows to the grids, I don't think we can expect it all to be stopped immediately. That's when the pores in the grid material are the largest, before any DE is coating them. I think you're doing it right.

Hal

[105ex]

I don't think there's anything wrong with your grids. I see evidence of a little blow by in my pool, too. When the grids are clean and suddenly this almost liquid material flows to the grids, I don't think we can expect it all to be stopped immediately. That's when the pores in the grid material are the largest, before any DE is coating them. I think you're doing it right.

Hal

Thank you for the reassurance, Hal.