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The Max Flow is our highest-capacity truck skid — 300 gallons of water, two pressure washers, four electric reels, FlowPro remote downstream, and a pure water window cleaning system on one 8 ft platform. Originally built for Alex of Stockton Car Wash (full walkthrough video linked in the photos), it comes everything-installed and ready to spray. Built by hand in Oregon City, Oregon, with a lifetime frame warranty.

This is the skid for operations that outgrew a standard setup: bigger water capacity for bigger jobs, a larger bleach tank for the commercial work, two machines running at once, and window cleaning on the same truck. We recommend a 3/4 to 1 ton truck (an F250/2500 with an 8 ft bed works well). Dry weight is approximately 1,675 lbs.


The Frame

  •   Heavy-duty double-reinforced 8 ft aluminum truck skid with lifetime warranty
  •   Matching heavy-duty surface cleaner rack designed to hold a Whisper Wash 19" Classic — and a top-of-the-line Whisper Wash 19" Classic is included
  •   Every nut, bolt, and washer is rust-resistant stainless — we're moving from 304 to 316 stainless for even better long-term durability

Two Machines, One Skid

  •   Honda GX690 custom-built gear drive 8 GPM pressure washer with block-mounted soft release unloader
  •   Honda GX390 custom-built gear drive 5.5 GPM pressure washer with block-mounted soft release unloader and electric start
  •   Upgraded double-insulated USA-made 6 AWG wiring on the pressure washer; 10 AWG USA wiring, fuse links, and USA fuses on the soft wash system
  •   Marine-grade Interstate battery built for daily recharging

300 Gallons of Water Capacity

  •   Four extra-thick slim 100-gallon tanks — three plumbed together with heavy-duty plumbing for 300 gallons of water (plumbing the tanks together reduces sloshing), plus a full 100-gallon bleach tank for larger projects
  •   Two 7-gallon soap tanks with a 3-way valve to switch between soaps, on our heavy-duty aluminum brackets
  •   Hudson float valve assembly and a 1-inch buffer tank drain — drains the tanks, fills buckets, and doubles as an emergency wash station
  •   Buffer tank plumbing with crush-proof suction hose, strainer filter system, banjo fittings, and stainless clamps

Four Electric Reels

  •   Four upgraded Titan electric full-frame reels rated for chemicals, with stainless manifolds and swivels — two 12-inch reels double stacked and two 18-inch reels double stacked, with our stainless Titan stack kits
  •   Heavier-duty USA wiring, USA pure tinned copper lugs, and a USA 50-amp circuit breaker

Soft Wash & Downstream

  •   Remco's latest Dual Control 12-volt 7 GPM 100 PSI USA-made soft wash pump with Viton seals — pressure switches dialed in before it leaves the shop, with far less cycling than cheaper pumps
  •   Our own Pro Mixer XL with proportional metering valves, 3/4 inch water and bleach valves upgraded free, and top-of-the-line check valves with Hastelloy springs — more chemical resistant than the usual stainless springs
  •   Brand new FlowPro electronic downstream system, plumbed properly with a rinse valve system — downstream chemical on the fly
  •   3-way bleach rinse valve with mounts, barbs, and stainless clamps to keep the system fully rinsed
  •   ST-510 soft wash gun with stainless couplers, stainless 4-nozzle J-rod dialed to the pump, and a 2315 chemical-resistant house wash gun for downstreaming
  •   Kuri Tec poly braid hose on all soft wash plumbing — the one place you can't cut corners

Hose & Pure Water

  •   200 ft of Fierce Jet 1/2 inch soft wash hose with crimped 1/2 NPT fittings
  •   Top-of-the-line Fierce Jet grey smooth non-marking pressure hose — rated above standard grey hoses
  •   Commercial-grade 100 ft 3/4 inch garden hose with our whip line that reduces kinking on the reel
  •   Pressure washer gun with 36-inch lance and M5DS twist nozzle for low-pressure spraying and downstreaming
  •   High Flow 4-stage pure water window cleaning system with custom mount
  •   Water fed hose reel mounted to the top of the EPW box with a locking, removable bracket — includes 100 ft of quality water fed pole hose

Shipping, Lead Time & Financing

Shipping is available nationwide — typically around $3,000; ask how we can offset shipping costs. Complete custom builds average about 35 days, and we may have in-stock skids through the year, so call ahead. Full financing is available.

Ready to Build Yours?

Talk directly with Tim and Kristina about your build — no pressure, no sales team.

Book a Discovery Call

Or call us at 503-403-6185

What Professionals Are Saying

Stephanie L.

Stephanie L.

Verified Buyer

"The Workhorse is everything Tim promised. We've run it hard for two seasons and haven't had a single issue. The training class alone was worth it — highly recommend."

Rachel M.

Rachel M.

Verified Buyer

"I shipped mine all the way to Texas. The quality of the build is unmatched — you can tell every part was chosen with care. Worth every penny."

Emily J.

Emily J.

Verified Buyer

"Picked mine up in Oregon City — Tim walked us through everything. That free hands-on training session was incredibly helpful for a new business owner."

Sarah T.

Sarah T.

Verified Buyer

The craftsmanship, eco-friendly materials, and excellent customer service truly make this product an outstanding standout.

Free shipping on almost everything

Free Shipping

All orders over $150 are delivered to your doorstep at no extra charge.

Some larger items and freight items are excluded, please see our shipping policy.

Returns On Freight May Vary

For larger items that ship via freight, contact our store about return policy and solutions.

503-403-6185

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