by daveesl77 » Sun Feb 22, 2015 6:05 pm
My truck camper had a 10 gallon tank. My 25' travel trailer had 25 gallons. My RV was idiotic. My last sailboat, a 48' Petersen that I put tens of thousands of miles on had 50 gallons, seldom doing a trip under 700 miles point to point, normally double that or more. On long trips I did carry another 25-50 gallons. Yes, we had the ability to use buckets of sea water and Joy to do the initial "shower" and then had a 1 gallon jug with holes punched in to do a freshwater rinse off. It worked fine.
This camper will have 10 gals. I do carry 15 gals of collapsible "fill tanks" in the truck and I have an on demand propane water heater. I set all of my outflow to be about 1 gal per minute max. It works very well. I have one of those portable waste tanks that you tow behind and it holds about 30 gals. I'd rather not be dumping it every day. Taking a 20 minute shower, leaving water running while washing dishes or brushing teeth is just additional work (and wasteful). Some places, such as Chaco, limit you to 5 gals per day fill up per person. Other places we go, water doesn't exist for 50 miles. We try, not always successfully, to be able to run 3-5 days without any hookups or replenishment if needed.
dave