Sand Filter Design

Hi

I know that this enquiry is outside the area of piping design, but, can forum members point me in the direction of sand filter design to be found in books and websites.
The type of sand filter I am interested in is the pressure type, not the gravity type.

Thanks
Ahmed Vawda

[Non-text portions of this message have been removed] Received on Wed Jun 13 03:52:00 2001