Plumbing the Campervan

Well i ordered pipe and fittings from CAK-TANKS and then realised that i was missing a couple of fittings so into the old mans shed and ;-) its like Aladins cave in there, theres everything you could possibly think of, from nuts n bolts to a full range of Acorn plumbing fittings and pipe... ooops sorry dad ;-)
I found enough pipe and fitting to do the whole van and more...so if you need your van doing... ;-)
The "Tees" in this photo are going to the water heater..
I have to put a hole in the roof now and i thought i would have gotten away with doing that by taking the flu at a slight angle through the rear wall panel but apparently my gas advisor tells me NO.. Straight up!! so a hole in the roof it is..