plumbing diagram - mystery pipe!

[aquapore]

Does any one have a fresh water piping diagram for Bav 41 2003 or any at all.
Does anyone know what the extra blue line does that goes through the galley sink cupboard -three lines enter (2 blue and 1 red)
One blue and the red serve the sink and then proceed to the forward head.
The extra blue one disappears forward into the wood work and is a mystery.

I have a problem with drinking water accumulating the the bilge that I have posted earlier to day. Any help would be appreciated.
Regards

Aquapore

[sean c]

Possibly connects the forward water tank with the pressure pump. Have a look under the forward bed.

[symphony2]

If you have the changeover valve in the loo then that is the feed from the forward tank.

[aquapore]

Yes - the blue pipe does connect to the forward tank.

Regards

RW