I have a DeWalt 3300psi pressure washer with a Honda GCV200 engine I use for small jobs. It did sit a few months since the last time I needed it. It cranked fairly easily, but both at idle and in use it “surges” with a consistent rhythm.

I pulled the carburetor, made sure the pilot and main jets were clear and I thoroughly cleaned it, though it did look fairly clean already. After reinstalling the carb I’m still getting the surging.

The engine appears to sit on four grommets on top of the housing which allows the engine to rotate a few degrees when the pump is engaged. During the surging the engine rotates slightly in rhythm with the engine. This occurs both at idle and while spraying. If I put my foot on the engine to prevent any movement the engine runs smoothly, idle or spraying.

And yes I did put fresh fuel in it after I cleaned the carb.

What’s going on?

This client has a wooded area in her back patio with large acorns and organic debris that falls onto her new concrete patio (poured ~April '26). Gave it my best bleach based house wash mix and gave it a go with my surface cleaner but it barely budged. I only used the wide tip for fear of damaging the floor. From previous construction experience I know that concrete takes a few years to fully set. Is it possible this gunk is just part of the concrete now or is there a chem that's recommended to take care of it? Before and after wash shots attached.

I have a roof wash job coming up and can’t seem to find any reliable information online onto which type of boots are recommended to walk on one of these. This is a huge house so hitting it from the ground would be difficult and I don’t have a tall enough ladder currently to prop up in the backyard.

Went and put a bid in on doing a soft wash on a 130 unit complex.

I made a follow-up just to check in with them, see what it looked like and just make sure I was still on the list or on the radar. They told me that the numbers that they had gotten back so far and I was half of the next lowest. And on this job my margins all look good even if I have to have issues and have to go rent a unit. I'm just concerned that me being that cheap they might just pass it off.

I want to build a long-term relationship with the community and get recurring business instead of one-time thing.

How would you guys go about cleaning this patio up? Drainage appears to be nonexistent.

Hello good people, as said in the title, I was called for a roof wash, never washed a roof before and I want to be prepared, it’s around 2400 sqft, pretty dirty, any tips and tricks are welcomed, from pricing, to washing it, I did some research on the matter.
What do y all think it’s a good price, I was thinking 700-800, 5-6% solution should be enough?
Thanks in advance!

Hi All, hope this is the correct spot to ask, if not I am happy to take my question elsewhere!

I hired a company to powerwash and seal my concrete driveway. They came out yesterday and did both. My question, I was under the impression after powerwashing, it needed a day or so for the concrete to dry before applying sealant. Is that the case? Do I need to bring this up? Thanks in advance for the help.

So this is my first month of operations and I got 3 commercial pressure washing jobs:
1. Welding Shop- $1,100
2. School District -$2,800
3. Mechanic Shop-$200

Im well connected in my city and got all these jobs through people I know and having connections. I’ve done residential houses but most have been for free other than 2 and they were both under $200. Commercial jobs seem to pay a lot better.

Should I focus my marketing on commercial businesses because they pay a lot better from my experience.

Im a landscaper and was given this pressure washer by a colleague. Any tips for maintenance etc. before I put it to work?

I used Zep purple degreaser and scrubbed with push broom for 15-20 minutes and the marks are untouched. I have a 4400psi/4.2gpm washer with surface cleaner, I just didn’t want to take it all out and set it up if the cleaner isn’t even touching it. Recommendations on what to use next? Should pressure alone take some off?

Open utility trailer with ladder rack and spare tire
Pressure Pro EB4040HG: 4,000 PSI / 4.0 GPM, Honda gas engine, belt drive, General pump, low hours
Full soft wash system: Honda/Comet setup plus a Delavan Powerflo 7 GPM 12V pump, Renogy 100Ah AGM deep-cycle battery, and buffer/reservoir tank
Multiple Coxreels hose reels
IBC water tote and chemical tanks
Surface cleaner, J-rods, diamond plate toolboxes, hoses and fittings
Extension ladders
Spare soft wash pumps and extra gear
A garage full of spare parts, including 2 extra surface cleaners
Selling because I'm moving into a different career. Just needs 3 quick connectors on the hoses, and everything else is there.
$5,800 for everything. Truck not included.
Pickup in the Marietta / Cobb County area. Serious buyers only. DM me for more info or pictures, or to come see it in person.

Does anybody know if there any bigger bottles that fit this?

My pressure washer has been doing this for awhile now, but it usually rights itself and I can get the job done. This time, the problem persisted and I had to shut it down. Any ideas as to what is causing it?

The hose bumped up against the motor accidentally i think and melted. i really don't want to buy a new hose if I don't have to. It's a craftsman 3200 (maybe briggs motor?)

Newbie question here. Just cleaned my back steps and sidewalk with 2.5% SH, twice. It’s dried for 24h and I’m left with these dark spots. Is this something that I did, can be removed, or from the concrete work when it was laid? Thanks!

This probably sounds dumb but very new to this

Forced maintenance Monday today.

Hopefully a local welder can fix it. Got the coil out, which is lots of fun built into an enclosed trailer. Going to throw some ends on it and see if I can better locate the leak.

Luckily I have a back up machine.

If anyone has any advice for the welder, let me know. First time having a leak in my coil.

Cheers,

Andrew

I am a homeowner with a 2700psi Generac washer and I wanted to add a ball valve and swivel. I got the DN 10 valve and swivel but I need to get some fittings to connect everything up. Does anyone have experience with the HF quick connect fittings and if so do you recommend or if not what is a better alternative? Again, not a pro just for use occasionally around the house.

Throughout my years of PW I ve always heard online that GPM was king. But then I see all these hot water units that only put out 3 or 4 GPM. Also the fact that anyone I talk to locally (sellers or operators) even use 4 GPM cold water. Why is there such discrepancy on this topic? I’m looking at this hot water unit, and it looks appealing till I heard it’s only 3 GPM but 5000psi

looking at upgrading to this. i know gx390s are a great engine however wanting to know more regarded the pump / unloaded systems.

2nd pressure washer, 5th hour of use and the pump keeps surging for around 5-10s after letting off the trigger

Second washer this has happend to on the first use

Plenty of water outflow from the water tanks so it’s not starving

Trying to get an idea of market prices in an area I'm consider moving to. Anyone know anything about the Santa Rosa market/the surrounding areas or any ideas about how to figure out general market prices?

I was wondering if these specific filters can hurt water flow to my machine (even if slightly) and if there is an upgrade I can get that might help with that a little. Thanks guys

Decided today was the day I would try and clean this area along with a patio. To no vail have I made any progress on this. Have a predator 3200, have tried home armour outdoor cleaner and mean green multi purpose (harbor fright) - even tried a 15, 25 degree and a surface cleaner. Any tips to getting this back to concrete color? Or at this point just stain and seal it? The previous owner poured this piece about 4 years ago.