Hi guys, I have been researching in the forums about orifice size and it has really helped! Im trying to decide if I should buy 25025 or 25020 tips for my 4gpm 4000psi pressure washer. I just use a 16" BE surface cleaner with it.
I mostly do residential work and just want to make sure I am running the best setup with where I’m at currently. From what I saw, it looks like 25025 would run at around 2600psi whereas 25020 would run at 4000psi. But if I understood correctly, 2500psi might increase the gpm’s consistency and float better but 4000psi would clean dirtier spots?
If you were in my position, would you run 25025 or 25020 with this setup?
Thanks for the input!
Miles
I tried the 25025s on my 4gpm machine and it wouldn’t touch lichen and had to go super slow and multiple passes on really dirty concrete. My guage showed 2200 psi at the gun. Put the 2502s back in and it’s much better. Getting about 3000 psi at the gun now. I do have the nozzles adjusted as high as they go. Going on 3 years with this setup and is great, no issues with too much pressure.
I’ve only had one job with new conrete and it just gave it a 15 minute dwell with a strong hw mix and 1000 psi rinse with the wand
Lol, maybe 10% of my jobs do I use it. Rather not, but a lot of people want the driveway done with a house washing. It’s just a 4 4000 Simpson with a Honda 390 and Cat pump. Going on 3 years and it still runs great!
I still have one of those, same configuration, with a belt drive, just not on cart, great little machine. I use it once in awhile if I want a strong mix and just for the heck of it. Only thing I’ve done to it in 7-8 years other than fluids is a new starter rope.
I have the same machine with CAT pump. It worked very good but am so glad for the 8gpm upgrade last year. I personally went in the other direction. The residential concrete in our area sucks and with 25025’s I was blowing concrete apart with 200’ of hose. I didn’t have a guage so I never measured it and that was with a 20" cleaner. I use 25030 or even 25035. I find the most important aspect of cleaning concrete is pre-treatment/wetting. This softens the organics and makes cleaning not only way easier but also lasts longer. This is my 4th year. There is a house up the street that you can barely tell i washed except for the residual 2 stripes. Another that I pre-treated is barely growing back. I generally put down 4%. Just what has worked for me. Would love to put on the higher tips for ease but I don’t want to destroy stuff either.
I have the same setup, 4/4400 machine and 18" surface cleaner with 25020 tips. After 100’ of hose, I’m at 3000 at the gun. It’s been perfect for me. One thing to do is set your nozzles up as high as they go from the ground. I have no striping issues and never a hint of etching anything.
where I quickly realized I would have etched the whole thing if I cleaned all of it though lol
