On Fri, 07 Jul 2006 20:34:09 +0100, Richard wrote:

It won't - use a U pipe, not an inverted U.

Sorry, don't follow that. How do I fit this into a tank shaped like an
inverted U?

Fit it underneath. This is also where you have access to get to the pipe
fittings (unless you fancy working through the filler cap with
tweezers).