That's like changing the pool filter twice.
I worry a lot about it, that's where the heavy particles are
separated in a type of centrifugal filter.
God Bless America, Bill O|||||||O
http://www.billhughes.com/

Earle Horton wrote:
>
> If this is a concern change it twice. If what you drain the second time is
> reasonably clean, don't worry too much.
>
> Earle