Hey guys. Looking at buying a new washer to take over my 3 GPM hotsy. What is the most GPM that you can pull off of a house or commercial building to get maximum flow. I hear an 8 GPM. Machine wouldn’t work off of standard house hose volume. Maybe 5.5 would be better for resi jobs so I don’t have to supply water in a tank
Victoria, B.C. Canada
Exterior cleaning services
Specializing in real estate curb appeal packages and wanting to build into the fleet washing go to guy in my area.
Water flow from homes or buildings will be inconsistent at best, that being said, I feel it’s inefficient use of resources & time to pull directly off of a home or building water supply. Utilizing a buffer tank is insurance against the “What If’s” of water supply.
Depending on your specific set-up you may only need a 50-100 gal buffer.
I can’t imagine not using one…“What If’s” cost too much money.
Plus with a buffer tank you can setup your Powerwasher to go into bypass so it won’t overheat if you stop spraying a little to long. If you have employees or plan on having them having your Powwreasher setup to run in bypass if needed is a must.
I use a 225 for a 5.5 and 8 at the same time, so I would have no isuue going to a 125 for a single machine. I have read from many experts that say you need 10 gallons in the buffer for every gpm of the machine.
I have a 275 gal buffer tank to feed my 8.5 gpm machines on the truck. On some houses, the flow from the customers spigot is to slow, and I will burn through the buffer. When we do big driveways, I like to try and run both 8.5 machines with surface cleaners to make quick work… But a lot of times run into problems of the spigot not able to keep up with 17gpm being drawn from the buffer… When at all possible when trying to run two machines, I try to double feed the tank from two different spigots, or a spigot and a well pump etc…
I have the Hudson Valve but haven’t found the bulkhead I need yet. Where can I find them? I have a jury rig setup at the moment and its fine but it messes with my head because I know it’s not what it should be.