Build Your Own 12V Softwash System: Affordable DIY Guide
As you start your pressure washing business, adding soft washing capabilities can expand your services and increase revenue. A 12V softwash system is an excellent, budget-friendly option that allows you to apply any strength of chemical mix—from mild cleaners to full-strength SH—without relying on your main pressure washer. This DIY build is simple, saving money while giving you hands-on knowledge to maintain and troubleshoot your equipment. Follow this guide to wire a basic circuit for reliable performance on jobs like house washes, roofs, and more.
Why Build a 12V Softwash System?
12V systems shine for their versatility in chemical strength, making them ideal for delicate surfaces where high pressure could cause damage. They're portable, run on a deep-cycle battery, and don't require complex setups. Pros: Low cost (~$200-300), easy to customize. Cons: Limited flow for very large jobs; keep spares for reliability. Perfect for beginners to gain confidence in offering soft washing alongside pressure services.
Parts List
- Remco Fatboy Pump
- Noco Genius Charger
- Circuit Breaker
- On/Off Switch
- 12V Deep Cycle Battery (ours) or Amazon Alternative
- 10Ga Wire
- Disconnect Pairs
- Ring Terminals
- Wire Strippers
- Battery Box
- Bulkhead Plug
Step-by-Step Build Process
This wiring is straightforward, creating a safe circuit for your pump. Use 10-gauge stranded wire for 24A max draw. Follow these steps from practical builds:
- Prepare Battery: Use a marine deep-cycle battery for stable 12V output (100-30% charge). House in a battery box for protection.
- Connect Positive Wire: Run red wire from battery positive to circuit breaker line side (incoming power). Breaker protects against shorts/failures—reset if tripped.
- Add Switch: From breaker load side, wire to on/off switch. Mount switch for easy access (toolbox/trailer exterior).
- Wire to Pump: From switch, connect to pump's red lead. Use disconnect pairs for easy swaps; crimp ring terminals on ends.
- Negative Wire: Run black wire from battery negative directly to pump's black lead. Simple ground completes circuit.
- Install Charger: Attach Noco Genius leads to battery terminals. Run cable to bulkhead plug on trailer for nightly charging—smart tech maintains battery health.
- Test Circuit: Flip breaker/switch; pump should run on flow/pressure. Check for consistent performance; use wire strippers for clean connections.
Size components for 30A rating to handle peak 24A. Use pliers/crimpers for secure terminals. This setup ensures reliability—keep spares like pumps for field fixes.
Watch the Full Wiring Tutorial
Tips for Success
Label wires (positive/negative) for maintenance. Charge nightly for 2-3 job runtime. Avoid backpack sprayers for SH—use dedicated tanks. This system unlocks any chemical strength, boosting versatility. For full softwash integration, see our how to build a waterfed pole cart.
Ready to diversify? Dive into equipment, techniques, and business formation. We provide website building, hosting, and SEO packages to elevate your business.