In my quest to avoid a generator and conserve my batteries while dry camping I plan to install a foot operated pump under the sink area to an additional cold water tap at the kitchen sink.  This has served me well on my sailboat for years.  I have a 1977 rear kitchen model and I need to route a line from the water tank and under the bathroom floor following the path of the other water line from the electric pump.  I tried to lift the bathroom floor but it seemed either held down by elusive fasteners or binding firmly on the toilet base.  Is there any trick to getting the bathroom floor up to get at the water pipes?

I can't tell from your post - Did you remove the toilet?
I had to when I removed my bathroom floor. Had to remove a few bits of molding as well - but then the "floor" came right  up in one piece with easy access to plumbing.

Not sure if mine is the "stock" set-up - but you might try lift off the toilet (if you haven't already)
Horst
#2961

You will have to remove the toilet for sure and possibly the plastic collar which the toilet mounts to in order for the floor to come up.  The good news is that this will give you an opportunity to reseal the toilet collar as it goes into the black water tank.  You may have to remove the vanity as well.  I did when I made a new floor for the bathroom.

Bob yes the toilet has to come off but heres a few tips that my dad did when he had the floor up the best is cut the floor in half at the rear of the door all your water line couplings are under this area, then you can secure the rear section but still be able to get to the water lines also cut the floor a little short around the vanitey and just secure it down with a couple of dry wall screws makes it a lot easyer to get back up