Looking at sorting out the back of the van when it gets warmer.
Proteckta-cote the floor
insulate the sides & roof and board on top
make wooden "trunking" to run the pipes in, packed with insulation
make a container for the DIvessel, with insulation. but "access" to change filter
anyway, back to the original point, could i run two hose-reels of the 100psi pump? will i need 2 DI vessels?