Water Tanks

While Molly runs on diesel, we run on water. Water is also pretty handy for doing the dishes and keeping everything and ourselves clean.

There is not much to say about water, and the plumbing provided by Earthcruiser is very good, so we did not need to make any changes. The following is just a summary of the water setup and our typical water usage.

Water Capacity

Molly has two freshwater water tanks. The primary tank located inside the house has a capacity of 165 liters (43.5 US gals). The secondary tank located under the truck has a capacity of 82 liters (21.5 US gals). Molly also has a 45 liters (12 US gals) tank for the gray or waste water.

Water Consumption

A very general guide is that a single person should drink around 5 liters each day, and therefore our 250 liters of freshwater would last 25 days (in theory). Assuming we consume twice this amount to allow for cooking and washing, we are already down to 12 days. This simple calculation demonstrates that our water does not last that long. Water is likely the most limiting resource when we are not in civilization.

Actual usage measurements show we typically use around 10 to 15 liters of water per day, giving us around 2 to 3 weeks supply on the water tanks. The chart above is typical for us, showing fairly consistent water usage over time. We stayed with a friend for two days, and the water usage was zero during this time.

Molly’s water system allows us to refill the water tanks by pulling water from a stream or a lake. We have never done this.