What is this white stuff

[CVAL44]

I use an SWG if that makes a difference

 

[PoolGuyNJ]

If it washes off easily, its salt. If it is still there when wet, it's calcium that deposited itself due to an extended period of unchecked pH rise. Cells produce chlorine but the way it forms tends to raise the pH. This needs to be compensated for. See the Pool School link at the top right.

Here is a link that describes what needs to happen.

pool-school/calcium_scaling

Scott

 

[CVAL44]

If it washes off easily, its salt. If it is still there when wet, it's calcium that deposited itself due to an extended period of unchecked pH rise. Cells produce chlorine but the way it forms tends to raise the pH. This needs to be compensated for. See the Pool School link at the top right.

Here is a link that describes what needs to happen.

pool-school/calcium_scaling

Scott

When wet is seems to dis appear

 

[PoolGuyNJ]

If you wipe with your hand, is there powdery residue?

Scott

 

[Guest]

Is your salt cell plumbed ahead of or behind the spa bypass?