So you wrote a book after doing the job for 2 years? If I wrote a book after two years there would be a lot of half-wit knowledge. Idc if you read “240 hours” on the forum. It’s exactly that, a forum. Internet know-it-all’s with a few good reputable people peppered in. You could read 1000 hours and learn more in one week on the job. Takes a lot of confidence to write a book based off of forum knowledge.
My 2 cents.
I think book was on Amazon after 3 months of washing.
I could be wrong by a week or 2. Lol
I appreciate the input. I’d love to hear from @Racer too. So the unloader increases pressure in your lines which increases your static pressure as well as your working pressure as far as I understand (could be wrong though). I usually run 2800-3k a bit throttled down.
The size cleaner is have always understood is contingent on the gpm x pressure. So a 4gpm x 4K Max efficient size would be a 16in. I ran a 20 and walked slow for years and loved it, but recently dropped to an 18 and that thing floats like a dream. The 8gpm x 4K cleaning units would bring it to a max 32 before it starts losing efficiency.
The problem I’m having is a big guy (used to run a 2 tip bar no problem) is that when I put my 25020 4 tip on there, it doesn’t dig as deep as it used to. It doesn’t clean like it used to. Maybe take out the figure 8 metal pieces in the tips?
Holy sweet Jesus. Now I am catching up. Someone may have answered my question, but I have a feeling we have some professional corrections going on here, I’m finta get some popcorn. Stand by.
Take out the vanes. Set your unloader for max flow, pressure should not be a factor in setting an unloader. I am unaware of any machine on the market that is 8 at 4k unless maybe you are running an igx800 or something bigger than a 690. stick with 18inches.
Welp. That wasn’t professional banter. But @Hotshot said it right. I couldn’t stop 
If I put an 18 on my 8gpm, which I plan on running brush skirt surface cleaner later ( just not this job because of the volume) without a 20lb weight, it’ll be more effort to hold it down. I couldn’t think of the name, they’re called veins. Good call.
I usually leave my unloader lower too because the lines don’t jump as hard. The cleaner almost never left lines like these turned down. Also. Tennis courts hate high pressure and this is one reason for the 4 bar. I wanted to do 45020 on the tennis court I have coming up to leave more subtle lines, but idk if this will work out. Any other input or tricks yall with big guys and 4 tips do to get a nice finish?
Have you considered a flow actuated unloader like the k7 or zk1? I love them, never going back to trapped unloader
Like take out the veins, change swivel, walk so slowly you go backwards, I know pre and post would make a big difference, but that’s not an option for this job.
YES I WANT ONE SO BAD! Buttttt I kept reading that they’re temperamental so I never did it. I have one with the proper size orifice for the 3-6gpm I think is the size, just need to change the inlet and outlet for the 8.
I have not had issues with my k7 for the couple years I have been using it
This is an absolute minefield of a thread, one that has devolved from advice giving (wrong or right) to personal attacks. I feel like that wasn’t really the case a couple of years ago, something’s changed.
I’ve given bad advice on here before, and felt more embarrassed and red-faced over that than most forum users probably would. Nowadays on here, I only feel comfortable answering questions that I feel like the “old-hats” here won’t respond to, regurgitating the same advice I learned from their posts from years back.
Honestly at this point I don’t even know where I stand here, and I imagine a lot of other users are hesitant to post at all, let alone pay for a membership.
@A.M.P.W I don’t use a “big guy”, but I do use a 19" WW Ultra with a 4-nozzle on a 7gpm machine. It’s been an absolute dream. My tips are 25-degree, not 45. Honestly I’m wondering if that’s part of your problem, but I’m hesitant to even bring it up because if it’s a dumb suggestion I feel like I’ll lose the respect of the people here that I look up to the most.
One thing I’m confident in regurgitating is @Innocentbystander 's statement that your unloader should be set for your flow and left alone from that point forward. It’s not meant to adjust your pressure for different jobs, nor is “throttling” your machine.
And there it is. I misread your post lol. You were THINKING about running 45 degrees, I didn’t catch it. Still, the unloader bit was accurate
I just bought a ww classic 19" off Donut and haven’t ran it yet, do you run 4 tips or 2 ?
But i run all 5.5 and 6gpm machines
Man, give advice if you know it. There are threads here that I’ve never even opened because they are about marketing and stuff I know nothing about. I didn’t even look at the rubber scrubber thread for six months because I had nothing to contribute. I just try to talk about stuff that I know and if I’m doing it it is right because I’m not going to do something the wrong way. You got good stuff to share, so share it.
I ran 2 tips at first but had the slightest striping. So I dug into the forum and saw I was *just able to run a 4-nozzle at 2900 psi.
To run a 4-nozzle on a 5.5 I think you’d need to track down a set of 25015s. That’s 3300 psi. At 6gpm the same tips would give you 4kpsi, but 2502s would only put out 2250psi. Hard to get the sweet spot on a 6
So anyone running a big guy with a 4 tip? I have seen a ton of people saying they’re running that with a 4 tip and it’s great. Just want someone to chime in with their setup with the big guy and the 4 tip 8gpm. Tip size, veins, pressures, etc?
I just realized. You guys with your classics 4 tip can be a huge help too. It’s the exact same swivel, and same tips just a shorter bar. The problem I’m having isn’t because the bar isn’t spinning fast enough, it’s that the tips aren’t getting deep enough. What have y’all found that may make the tips themselves work better, or was it fine out the box. I’m checking the orifices tomorrow to see if maybe I reamed them out a bit.
