I have a lot of cars and bikes, which means a lot of vehicle washing going on. But I am not satisfied with the water flow rate coming out of the hose. I think the issue is restriction, not pressure. The house has good pressure (city water). Im pretty sure the water hookup to the detached garage is connected with the small (3/8"?) compression fittings, and I think that is my restriction. Problem is, they are three feet underground.
My question is: Can I get a precharged water tank like this
WaterWorker-HT-20B-Blue-20-Gallon-Vertical-Pressure-Water-Well-Tank
and connect it inline in my garage? Seems like it would work great for holding pressure for 4-5 gallons worth while I rinse the cars off. I just wanted to make sure I wasnt over looking some basic fluid dynamic law of pressure.