I have an '81 Westy, California model, and it came stock with filters on both sides of the
pump.

Bill in the Southwest

----- Original Message -----
From: "Steve Delanty" <laurasdog@WEIRDSTUFFWEMAKE.COM>
>
> But, I was looking in Bentley, and I find it odd that
> for most of USA and Canada there is a filter on the
> inlet side of the pump.
>
> For CA (mine) there is no filter on the inlet to the pump,
> but a very large filter on the outlet (high pressure side!)
> of the pump...