3000 vs 3500

[Tiger Pressure Wash]

which would you prefer as far as concrete goes, both residential and commercial

8 gpm 3500 psi
10 gpm 3000 psi

will that 500 psi make a real enough difference?

 

[Kiloman]

8 at 3500 10 gpms i feel like is a bit overkill for residential because some water sources can't keep up.If you run any length of hose the pressure drop will put you right were you need to be as far as psi on the 3500.My current pump is a udor 12@3000.I love it on jobs that the water supply is good but not so much when it is not.

 

[Guy Blackmon]

which would you prefer as far as concrete goes, both residential and commercial

8 gpm 3500 psi
10 gpm 3000 psi

will that 500 psi make a real enough difference?

First off you won't be pushing that kind of psi unless your hose is like 25'. Longer the hose the more psi drop you'll have.

Example....@3500 with 200' of hose, no injector inline you will have about 3200 psi at the gun.

Running 10 gpm at 3000 psi you would need to move to a 1/2" hose for maximum gpm and psi....that's just a whole other subject there.

If the "bulk" of your work is commercial go with 10 @ 3000.....if you mainly do residential with some commercial here and there go with 8 @ 3500

Our trailers are running 8 @ 3000 and we have no problem with residential or commercial work.

Just saying.....

 

[Tiger Pressure Wash]

mostly residential, some commercial.
8's the winner here.
Thanks guys!

 

[tomtucson]

I always take the volume. You could run the 10 gpm pump slower to get 8 GPM and then have the option to go up.

 

[gear junkie]

Both with a 3/8 hose, the pressure drop for 10 gpm is 4.4 psi per ft. At 8 gpm it's 2.9 psi per ft.