I am running a 4/4000 machine and a 20" Whirl Away SC. Machine pushes the SC just fine and I get great results. It came stock with 2502 tips which do fine, but clean at 3000 PSI. Around here that kind of pressure isn’t needed for residential concrete. Added two 2503 tips onto an order from Bob this morning which should bring it to around 2000 PSI. Hopefully this will be the sweet spot for my setup.
Anyone else gone through this process? What did you end up using?
That’s sounds right. 2502’s should have had you at 4000 psi, which is way too much pressure. I clean at 2000-2300 and never have a problem cleaning even the dirtiest driveways. Just use a hotter mix. IMO less pressure and a stronger mix is better. You can’t put the cream back on the concrete after it is blasted off.
2502’s only get 3k psi on a 4k machine?
Is this right guys?
Can someone post one of those guides?
I’m playing with my nozzles on my 3 tip machine running 8 @ 4000. Trying to get the pressure down, but not too low
Are you bypassing to a tank? That amount of hose should only lose a couple hundred psi. Your unloader might not be adjusted right. According to your specs, 02 tips should be at 4000 psi. Did you ever put the gauge right after the pump? If your unloader is set too low you could be losing flow too, which isn’t good with a 4 gpm machine.