My hunch is they just want to make sure there’s plenty of flow (though doubling what’s needed seems like overkill) to avoid folks starving the pump and causing a load of warranty headaches for them because of, well, human error. It sounds like they’re using that wording as an easy out to deny warranty claims… should you ever have a warranty issue I’m sure they will ask about the spigots flow rate you are using. Think about it this way: if you fill up a 30L tank with a spigot pumping out 10L a minute, and your pressure washer only uses 8L a minute, then your machine isn’t keeping up with the spigot’s flow… the tank is gaining 2L a minute of water you aren’t able to remove and will eventually overflow because the equilibrium is off. This is a good problem to have when using a pressure washer… if it’s the reverse (only getting 8L but using 10L) then you are going to run out of water before it can replenish… thats one of the reasons a buffer is needed.
If you’re getting 12L a minute from the spigot, the 8L a minute pressure washer should be able to handle it.
Candyshop wanted to use a recycle bin as a buffer tank. It’s a homeowner 2 gpm direct drive pump and they were worried that both flow and pressure wasn’t going to be enough to supply it.
@Candyshop if you’re a homeowner trying to clean your own home, I highly recommend you hire a professional.
If you’re a guy just getting started out, I suggest you return whatever that machine you have and save your money for a while longer until you can afford decent starter equipment.
Here’s the competition in London. These cats aren’t rolling around with recycling bins for buffers and from what I remember of the conversation (it was 2am and I was half drunk riding an electric scooter around downtown London and the guy’s accent was hard for my redneck ear) the company this guy worked for is huge. They do the sewers, parking garages, etc.
I know there’s decent equipment in England. I’ve seent it.
He was explaining how those worked and I was the dumb American standing there drooling. Some of the attachments he had in there looked like some 50 Shades of Grey stuff lol
