we are thinking of putting another van on the road and we would be interested in thoughts on viability of using just di filters, we use r/o at the moment. the r/o is good but the drawback is that it takes so long to fill the tank that the van is permenantly attached to the tap when we are not working, also you can only clean until the tank is empty, on the other hand we have only had to replace the pre filters once in about 3 years whereas i believe that you need to replenish resin frequently. i know that a lot of the guys use the di method and maybe have used r/o too so they maybe able to suggest which is best or are they both good ways of doing the same thing. also assuming you can connect up to a water supply to fill the tank in your van on a regular basis whilst working, am i right in thinking you could easily work with maybe a 200-250ltr tank which in turn would mean a much smaller van than is needed for a 650 ltr tank
thanks
bill