Cool solution
bat said:
I was looking around Northern tool site yesterday and found they sell a bug/chemical spray tank with a pump/power switch and 16 to 22 gallon tank. The pump is activated when the trigger on the sprayer is opened, the 16 gallon is $99.00. I was just thinking about a on board water system for shower or cleaning up dishes. I would post picks but I am not that smart so if someone has the that brain cell and not to busy that would be great.
I had a good talk with our 'plant' guy at work since he had a pretty trick setup for watering plants.
http://www.rittenhouse.ca/asp/Product.asp?PG=799
All mechanical, no electrics. A bit expensive, but there is literally nothing to malfunction on the unit. The guy was mentioning the last one he had lasted 10+ years with 1 fill, apparently they are sealed pretty well. If you look at the section profile, you can see that the water pressure pressurizes the system by compressing the bladder.
He had his plumbed with all sorts of valves and a on/off switch on his watering 'wand', but it would be easy to figure out something that would work on a rig.