I am looking upgrading to a 5.6 GPM 2500 psi machine. My only concern is the PSI. Is 2500 enough to effectively clean concrete?
Basically it comes dow. To a $1000 difference in the pymps between this unit and one with 3500 PSI.5.6 for sure, the volume will make more difference than the psi. Whats holding it back to 2500?
If its a $1000 difference then buy it. Remove the pump. Buy a TS2021 http://www.pressurewasherauthority....mp-ts2021&cat=general-pump-cw-ad&catstr=HOME:
$454 save $546
Then sell the 2500 psi pump on Cleaning Equipment Trader and you come close to breaking even at 5.5 3500
If its a $1000 difference then buy it. Remove the pump. Buy a TS2021 http://www.pressurewasherauthority....mp-ts2021&cat=general-pump-cw-ad&catstr=HOME:
$454 save $546
Then sell the 2500 psi pump on Cleaning Equipment Trader and you come close to breaking even at 5.5 3500
Love my 10gpm
I know a guy around here (He is actually on PWI sometimes) who bought a 5.5 GPM 3500 PSI for residential cleaning, and ended up putting 2500 PSI nozzles in his surface cleaner anyway. 3500 PSI is too much for residential concrete. I am getting by just fine with 7 GPM and about 2000 PSI. Go with the 2500 PSI machine IF you are only doing residential. It will save you not only that initial investment, but probably a couple grand worth of gas per year.
I have posted this pic many places to prove this point, but I guess I'll keep posting it. Here is concrete cleaned with 7 GPM 2000 PSI, and pretreating with bleach and caustic downstreamed.
Sent from my DROID RAZR using Tapatalk
Exactly Josh. 3500 psi on driveways by me would require a 5 gallon bucket to carry away the top layer of concrete that ends up in the gutter. David mentioned commercial flatwork. That would probably require more psi.
Looks great Josh. Do you recommend always pretreating when using this low of a PSI? Personally i never pretreat concrete put it might prove necessary now.I know a guy around here (He is actually on PWI sometimes) who bought a 5.5 GPM 3500 PSI for residential cleaning, and ended up putting 2500 PSI nozzles in his surface cleaner anyway. 3500 PSI is too much for residential concrete. I am getting by just fine with 7 GPM and about 2000 PSI. Go with the 2500 PSI machine IF you are only doing residential. It will save you not only that initial investment, but probably a couple grand worth of gas per year.
I have posted this pic many places to prove this point, but I guess I'll keep posting it. Here is concrete cleaned with 7 GPM 2000 PSI, and pretreating with bleach and caustic downstreamed.
Sent from my DROID RAZR using Tapatalk
Looks great Josh. Do you recommend always pretreating when using this low of a PSI? Personally i never pretreat concrete put it might prove necessary now.
So I guess the overall consensus is go for the 5.6 GPM which will definitely be enough for res concrete cleaning?