4-Soap Injector System – Suttner ST-164 Injector with Foaminator Lance

The Soap System – Full Assembly 4‑Soap Wash System is a wall‑mounted, plumb‑in solution that lets you inject up to four different soaps or chemicals through one gun with the turn of a valve. It’s built for owner‑operators, small fleets, and shops who want true commercial‑style convenience at home or in a dedicated wash bay without installing a full tunnel. Paired with the premium foam gun, it delivers thick, even foam and fast switching between products so you can wash, degrease, and protect from a single station.

What Makes The 4‑soap Wash System Different

Most “multi‑soap” setups for pressure washers are cobbled together from cheap valves, tees, and garden‑variety hardware that don’t meter chemicals consistently or stand up to daily use. This 4‑soap system is a purpose‑built, professionally assembled unit designed specifically for car and truck wash chemicals, using quality components, proper check valves, and a premium foam gun for reliable, repeatable performance.

Instead of swapping foam cannons, disconnecting bottles, or dragging multiple sprayers around the truck, you can pre‑plumb up to four Image Wash soaps or chemicals—like touchless wash, neutral pH soap, degreaser, and wax replacement—and switch between them in seconds. That means less downtime, cleaner plumbing, and a faster, more efficient wash process on every vehicle.

Recommended Use Routine

1. Mount the 4‑soap wash system securely on a suitable wall near your water and pressure washer connections, reference the electronic instruction guide emailed.

2. Plumb your incoming water and pressure washer supply to the system, ensuring all fittings are tight and leak‑free.

3. Connect up to four chemical feed lines to your chosen soaps/chemicals (for example: Touchless 1 & 2, Platinum Wash, All Purpose Car Degreaser, and Vehicle Spray Wax Replacement).

4. Calibrate each line to the recommended dilution using the system’s injector/orifice setup so each product pulls at the correct ratio. Talk with an Image Rep if needed.

5. To wash, simply select the desired soap using the control valves, trigger the premium foam gun, and apply product to the vehicle.

6. Rinse or switch to another product as needed (for example, from touchless soap to wax replacement) by changing valve position—no disconnecting or swapping bottles.

7. After use, run clear water through the gun/system to flush chemical lines to aid equipment lifespan.

Equipment & Setup Recommendations

This 4‑soap wash system is designed as the backbone of a serious home or light‑commercial wash bay and should be integrated with the right supporting equipment.

• Quality electric or gas pressure washer sized appropriately for your wash needs and the foam gun’s requirements.

• Dedicated Image Wash chemicals such as:

  • Touchless 1 & 2 – The #1 Touchless Car Wash Soap for brushless washing.

  • Platinum Wash – Neutral pH Detailing Truck Wash Soap for contact washes.

  • All Purpose Car Degreaser for frames, engines, and heavy grime.

  • Vehicle Spray Wax Replacement (Foam‑On/Rinse‑Off) for protection.

• Proper water supply (ideally softened) to improve foam quality and rinse performance.
  

Why You Need The 4‑soap Wash System

• Lets you run up to four different soaps/chemicals through a single, premium foam gun, dramatically speeding up your wash workflow.

• Eliminates constant swapping of foam cannons and bottles, reducing setup time and frustration for every wash.

• Provides consistent chemical injection and dilution, helping you get repeatable results with Image Wash products on every vehicle.

• Ideal for owner‑operators, small fleets, shops, and serious enthusiasts who want a “mini wash bay” experience at home or in a dedicated bay.

• Pairs seamlessly with flagship products like Touchless 1 & 2, Platinum Wash, Vehicle Spray Wax Replacement, and All Purpose Car Degreaser for a complete prep, wash, and protect system.

• Premium foam gun assembly delivers rich, clinging foam that improves dwell time and cleaning efficiency on cars, pickups, RVs, and semis.

• Wall‑mounted, full‑assembly design keeps hoses, lines, and valves organized and off the floor for a cleaner, safer workspace.

• Built with durable components meant for frequent use, making it a long‑term investment in your wash process rather than a disposable gadget.

What's Included:

1. ST-164 Dual Injector with 2 metering soap boxes
2. The Foaminator Wash/Rinse Lance
3. Stainless J hooks for wall mount storage of Foaminator (2 hooks)
4. 4-12ft Jumper Hose for pressure washer - (for injector inlet) 
5. Braided 1/4" soap hose for drawing soap - (4) 10 foot lengths 
6. Premium soap draw tubes with mesh screen (4 draw tubes, 5 through 275 gallon sizes available) 
7. Metering tips for precisely diluting your soap (2 bags of 6 pcs) 
8. Foam nozzle for Foaminator customized for your GPM and PSI (1 Nozzle)
9. Meg/Rinse tip for Foaminator customized for your GPM and PSI (1 Tip)

Frequently Asked Questions

How does the 4-soap system run four chemicals?

Two metering soap boxes each hold two chemical lines with a Step 1 / Step 2 valve, and the Suttner ST-164 dual injector selects which box you draw from.

Foaminator or Hi-Lo wand?

This version uses the Foaminator foam lance. For low-pressure wet-spray application with high-pressure rinse from the same wand, see the 4-Soap Wash System with Hi-Lo Wash Lance.

Does soap run through my pressure washer pump?

No. The injector is downstream of the pump, so chemicals never pass through it.

What containers does it work with?

Draw tubes are available for 5-gallon pails up to 275-gallon totes.