white sediment

[madlynb]

Occasionally, I will see white sediment coming out of my OT return pipes. What causes this and what is it?

 

[daugherty]

prob just some sand that is getting into the pipes

 

[yote]

Could also be micro-bubbles are calcium precipitation.
What are your readings for calcium and alkalinity?And are you dosing anything for calcium or alkalinity?

 

[madlynb]

I will check my calc & alk readings. No, I haven't done any dosing for either. I will get back to you. thanks