Portlandian Max Dual Axle 5x8 Pressure Washing & Soft Wash Trailer
The Portlandian Max is a dual axle 5x8 pressure washing trailer with a full soft wash system — 300 gallons of tanks, an 8 GPM Honda, and three electric reels on a trailer that still tows easy and parks in tight spots. Built in Oregon and backed by our lifetime frame warranty.
We took the Portlandian, one of our signature trailers, and built it for bigger days: a second axle, a 200-gallon water tank, 18-inch electric reels, and a built-in ladder rack. This isn't a utility trailer with equipment bolted on. The reel rack and ladder rack are part of the steel frame, and everything is laid out the way we'd want it if we were the ones out washing.
See every detail: we filmed a full walkthrough of this build — watch it on YouTube.
The Trailer
- ✓ Heavy-duty dual axle 5x8 steel trailer, custom built specifically for pressure washing
- ✓ Reel rack built directly into the trailer frame, not bolted on after
- ✓ Built-in steel ladder rack over the tanks
- ✓ Heavy-duty 1/4 inch aluminum tank cradle straps with quad mounting points on each side
- ✓ 316 stainless steel mounting hardware and hose clamps throughout
- ✓ Black rims
Power
- ✓ Honda GX690 8 GPM pressure washer with a Udor gear drive pump
- ✓ Block-mounted unloader — it takes the pump vibration off the unloader so it lasts
- ✓ Battery recharging system keeps the battery topped off while you work
- ✓ Interstate Gold Series marine battery in a protective battery box
- ✓ 11-gallon aluminum fuel tank with brass fittings
300 Gallons of Tanks
- ✓ 200-gallon V3 water tank and 100-gallon V3 bleach tank
- ✓ Recessed channel design keeps the tanks from bulging, with upgraded vented lids
- ✓ Seven-gallon soap tank with gallon markers, a vented lid, and a one-piece mounting strap
- ✓ Through-the-tank bulkhead plumbing instead of drop sticks — fewer stress cracks and air leaks from water sloshing on the road
- ✓ Hudson float valve automatically stops the garden hose feed when the buffer tank is full
- ✓ 1-inch drain with ball valve to empty the buffer tank fast
- ✓ TeeJet line strainer with a removable stainless screen to keep debris out of the pump
The Soft Wash System
- ✓ Flojet 6 GPM 12-volt soft wash pump with 3/4 inch ports, USA wiring, and a heavy-duty sealed switch
- ✓ Our own Pro Mixer XL — 3/4 inch metering valves on water and bleach for max flow, 1/2 inch on soap, with high-flow check valves
- ✓ 3-way bleach rinse valve to flush the chemical out and extend the life of your equipment
- ✓ High-grade Kuri Tec hoses and slotted PVC filters on the soft wash plumbing
Electric Reels, Hose & Guns
- ✓ Three 18-inch full-frame aluminum electric hose reels with 316 stainless manifolds and swivels, built to be chemical resistant
- ✓ Upgraded 3/4 inch manifold on the water reel so nothing restricts flow into your buffer tank
- ✓ 316 stainless steel hose reel stack kit
- ✓ 200 ft of 3/8 inch Fierce Jet grey non-marking pressure hose, rated for hot water, with a ball valve and swivel at the end
- ✓ 200 ft of 1/2 inch soft wash hose with stainless fittings crimped in-house
- ✓ 100 ft of 3/4 inch garden hose with crimped brass fittings
- ✓ Soft wash gun with a stainless 4-nozzle J-rod, plus a pressure washing gun and nozzles
Available Upgrades
- + FlowPro remote downstream system — the trailer already has a dedicated spot for it
Ask us about upgrade pricing when you book your discovery call.
Pickup, Delivery & Financing
Pick up at our shop in Oregon City and you get a full hands-on walkthrough and training on your trailer. Can't make the trip? We deliver by private transport — ask for a quote. Financing is available.
Before you book: why EPW builds are different · how buying a custom build works · financing · all pressure washing trailers · what size trailer do you need?
Ready to Build Yours?
Talk directly with Tim and Kristina about your build — no pressure, no sales team.
Book a Discovery CallOr call us at 503-403-6185
About Expert Power Wash
Expert Power Wash is a family-owned pressure washing equipment shop in Oregon City, OR, run by Tim and Kristina. Before we built equipment, we ran our own pressure washing business for more than ten years — so the parts and chemicals on our shelves are the ones we trust on real jobs.
Our storefront stocks thousands of parts, chemicals and supplies, most in-stock orders ship the same day, and when you call 503-403-6185 you talk to people who have run this gear.
Pickup & Delivery
Due to their size, our builds can’t ship standard LTL freight. We arrange private transport through a trusted local transporter who has delivered our skids and trailers all across the United States — rates vary by destination, so we quote delivery on your discovery call.
We strongly recommend picking up in person (or flying out) to take advantage of the free hands-on training and full walkthrough of your new rig. FREE local pickup at our Oregon City shop, Monday–Thursday 8am–4pm.
