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Honda GX200 — the small-rig workhorse Runs half the single-gun trailers on the road. We stock the carbs, filters, and pull-starts it eats through.
Pressure Washing Supply HQ.
Bulk sodium hypochlorite (SH) refill station
A case of jugs costs more in plastic than it does in chlorine. Turn the valve to your batch size and see what the refill station does to your chemical bill.
Drag the valve · or slider
55 gal — 20% of a 275-gallon tote
What we stock
Walk in with a busted fitting and a job at 2. Walk out with the part, the chemical, and a full tote.
12.5% and 6.25%, by the gallon.
Soft wash, degreasers, brighteners.
3/8" to 1/2", 100–300 ft.
Quick connects, swivels, unloaders.
0° to 65°, meters and turbos.
Comet and General, plus seals.
Surface cleaners, wands, gutter kits.
Tees, hoodies, hats. Wear the brand.
Built for contractors
Honda GX200 — the small-rig workhorse Runs half the single-gun trailers on the road. We stock the carbs, filters, and pull-starts it eats through.
Honda iGX800 — fuel-injected, commercial-duty What we spec for high-output skids and dual-gun rigs. Fuel injection means no choke fiddling at 6am.
Skid-mounted power unit — engine, pump, gauge, ready to plumb This is what leaves the shop when we build a rig from scratch. Same skids we service on ours.
Diaphragm pump — soft-wash and chemical injection Seal kits and gauges on the shelf. Bring in the worn one, we'll match it at the counter.
Predator 224cc Max Performance — budget-built, still stocked Not just Honda in the bays. We keep parts for the value engines too, because that's what half the fleet runs.
100-ft high-pressure hose — 3/8" to 1/2", by the reel Quick-connects pre-swaged. Grab a reel off the wall or have us cut and crimp a custom length.
Contractor account
Set up an account at the counter — bulk SH rates, net terms on parts, and a text when your chemical lands.
Open an accountWho runs the counter
Douglas Oko has run KO Powerwash, a pressure washing service in Beaufort and Bluffton, since 2020. He opened KO Powerwash Depot to sell contractors the same sodium hypochlorite, pumps and parts his own crews run. Ask about dilution at the counter and you're asking someone who ran that job last week.
KO Powerwash pressure washing servicesFeatured on WHHI-TV
Doug on Talk of the Town with Robyn Zimmerman, February 2025 — his background, the KO team, and the company's expansion into Florida.
Watch the WHHI-TV interviewKO Powerwash Depot opened recently and is building its own reviews. These are for KO Powerwash, the service company under the same owner.
“Doug and his team were fantastic. Incredibly fair pricing, great automated systems to confirm appointment times and even better results. They cleaned our house and driveway and could not be more pleased with their service. I highly recommend giving them a chance to earn your business.”
“The team was professional and fully committed and prepared. They did an exceptional job power washing our home, patio, our windows and our driveway. I will absolutely use them again.”
“It didn't take long as I watched my house being pressure washed that Doug and team are true professionals in every way! They did a first class job and I highly recommend them.”
Pro-grade chemicals
Concentrates we use ourselves. Ask at the counter and we'll walk you through the dilution for your surface.
DILUTION 4:1
Post-treat for algae, lichen and stubborn regrowth on north-facing siding.
SURFACTANT
Thickens and clings. Keeps SH on vertical surfaces long enough to work.
RUST & OXIDATION
Granular. For rust runs, irrigation staining and oxidized aluminum.
GLIDE + GLOSS
Cuts drag on surface cleaners and leaves concrete evenly bright.
HEAVY DEGREASER
Road film, diesel soot and shop grease off trucks and trailers.
Visit the counter
KO Powerwash Depot is a pressure washing supply store serving contractors across Beaufort, Port Royal, Bluffton, Hilton Head and the Lowcountry. Bulk sodium hypochlorite on tap, chemicals, hoses, pumps and parts — one counter.