[C320-list] 3 fresh water tanks ?

[wflowe3 at netscape.net]

I have 3 fresh water deck fills on Papillon (1146). One goes to the tank under the V-berth, one on starboard aft? (near diesel fill) that goes to a tank somewhere on the starboard? aft side (not sure where) and a third deck fill? on the aft port side that goes to a tank in the lazerette where the steering quadrant and cables are. It looks like the tank discharge hose in the steering lazerette has a? one way check valve and is plumbed directly into the toilet for a fresh water flush.

Is this a common set-up?