In a message dated 11/07/2006 2:19:16 P.M. Eastern Standard Time,
zolo@foxinternet.net writes:

Blowing  in reverse into the tank can dislodge particles and free the  flow.

Certainly true but the particles blocking the  screen are still in the tank
and will eventually block the screen again sooner  or later.

Cheers,

Frank  Condelli
Almonte, Ontario, Canada
'87 Westy, '90 Carat, '87 Wolfsburg  (Forsale) & Lionel Trains
Vanagon/Vanagon Westfalia Service in the Ottawa  Valley
_Frank Condelli  & Associates_ (http://members.aol.com/Fkc43/busindex.html)
_Vanagon Stainless Steel Exhaust  Systems_
(http://members.aol.com/Fkc43/stebro.htm)
_BusFusion_ (http://members.aol.com/BusFusion/bfhome.htm)  a VW Camper
camping event, Almonte, ON, June 07 ~ 10,  2007