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Home Forums General Discussion new to off the grid…living in camper…water options Re: new to off the grid…living in camper…water options


A dehumidifier requires lots of power so it doesn’t really fit with the concept of ‘off-grid’ living. How much volume can you realistically store? I’m speaking now of the cost of a suitable storage tank that will not contaminate the water, or rust out and leak etc.

Any tank inside the trailer takes away from living and storage space. Not to mention which, the weight of a full tank imposes more stress on trailer suspension or support base. Better to place such a tank outside the trailer. Safest is to use one of the industrial blow molded poly tanks they use for a variety of applications. They are made from a plastic that does not contaminate, will not corrode and is safe for drinking water and except when completely full, is relatively immune from damage in a mild freeze. I worked for a company that took highway coaches and converted them to special use RV or similar use. We always replaced any metal tanks with the poly tanks as a preventative measure. The company retained ownership of the coaches and chartered them out so they were responsible for all maintenance and repair.

Keep in mind also that if you go for rain water capture it is likely to contain micro organisms which may grow in the presence of sunlight. The last thing you want is a few hundred gallons of green tinged water with a scum on the surface. Poly tanks are translucent so need a sunlight blocking cover if placed outdoors.

The safest practice is to keep buying bottled water for tea etc. but use rain captured water for washing and flushing.

Hiking and camping gear suppliers offer a hand pumped RO system. You could use something like that for making rainwater drinkable; while the rest is likely good enough to wash with. Unfortunately even the smallest RO system tends to be expensive, especially in terms of filter membrane replacement cartridges.