How to Set Up a Soft Wash System: Complete Installation Guide for Contractors

Setting up a professional soft wash system doesn't have to be complicated. Whether you're upgrading from a basic setup or building your first system, this guide walks you through everything you need to know for a reliable, efficient installation.

What You'll Need for a Complete Soft Wash System

A professional soft wash system consists of several key components:

• 12V Chemical Pump - Delivers chemicals from your tank to the mixing point
• Chemical Proportioner - Controls mixing ratios for water, soap, and chlorine
• Wireless Remote - Allows safe pump operation from a distance
• Check Valves - Prevents backflow and chemical contamination
• Inline Strainer - Protects pump from debris
• Fittings & Connections - Professional-grade NPT fittings (1/2" and 3/4")
• Power Cord with Fuse - Safe electrical connection to your battery

Step 1: Plan Your System Layout

Before you start installing, plan where each component will mount on your truck or trailer:

• Chemical tanks should be easily accessible and secured
• Pump location should be close to tanks to minimize suction line length
• Proportioner should be mounted where you can easily adjust valves
• Remote receiver needs clear line of sight for best range

Pro Tip: Keep suction lines as short as possible (under 6 feet) to maintain pump efficiency and prevent cavitation.

Step 2: Install the Inline Strainer

The inline strainer is your first line of defense against debris that can damage your pump:

1. Install the strainer on the suction side between your chemical tank and pump inlet
2. Use 1/2" NPT fittings for secure connections
3. Position it where you can easily access and clean the 50-mesh screen
4. Apply thread sealant (Teflon tape or pipe dope) to all threaded connections

Step 3: Mount and Connect the 12V Pump

Your 12V pump is the heart of your soft wash system:

1. Secure the pump to a stable mounting surface using vibration-resistant hardware
2. Connect inlet from inline strainer to pump inlet (1/2" NPT)
3. Connect outlet from pump to proportioner inlet
4. Wire the pump through the wireless remote relay (positive wire only)
5. Install fused power cord with 20A fuse between battery and relay

Safety Note: Always use a fused power cord to protect your pump and electrical system from overcurrent damage.

Step 4: Install the Chemical Proportioner

The proportioner is what gives you precise control over chemical mixing ratios:

1. Mount the proportioner in an accessible location
2. Connect pump outlet to proportioner inlet (3/4" NPT)
3. Attach chemical supply lines to each proportioner port
4. Install check valves on each outlet to prevent backflow
5. Label each line clearly (Water, Soap, Chlorine)

Color-Coding Tip: Use colored dial rings to identify each chemical line at a glance - Blue for water, Yellow for soap, Red for chlorine.

Step 5: Set Up the Wireless Remote System

The wireless remote lets you control your pump safely from up to 100+ feet away:

1. Wire the relay between your battery positive terminal and pump positive wire
2. Mount the receiver in a weather-protected location with good visibility
3. Pair the remotes according to manufacturer instructions
4. Test operation before final installation

Step 6: Plumb Your Chemical Lines

Proper chemical line routing prevents contamination and ensures consistent mixing:

• Water line: Connect from fresh water source to proportioner water port
• Soap line: Connect from surfactant tank to proportioner soap port
• Chlorine line: Connect from bleach tank to proportioner chlorine port
• Output line: All three lines merge after check valves and run to your spray gun

Step 7: Test Your System

Before using chemicals, test your system with clean water:

1. Fill tanks with water only
2. Check all connections for leaks
3. Test remote operation - pump should start/stop reliably
4. Adjust proportioner valves and verify flow from each line
5. Check for proper mixing at the spray gun

Common Installation Mistakes to Avoid

• Suction line too long - Keep under 6 feet to prevent pump cavitation
• No check valves - Always use check valves to prevent backflow contamination
• Undersized fittings - Use proper 1/2" and 3/4" NPT fittings for adequate flow
• Poor wire connections - Use quality crimp connectors and heat shrink
• Skipping the inline strainer - This will shorten your pump's lifespan significantly

Maintenance Tips for Long System Life

Keep your soft wash system running reliably with regular maintenance:

• Flush with clean water after every use
• Clean strainer screen weekly or when flow decreases
• Inspect check valves monthly for proper sealing
• Check electrical connections for corrosion
• Test remote batteries regularly

Ready to Build Your System?

A properly installed soft wash system will serve your business reliably for years. Whether you're building from scratch or upgrading components, quality parts and proper installation make all the difference.

Looking for a complete system with everything included? Check out our Flow Boss Complete Kit - it includes the pump, proportioner, wireless remote, and all fittings you need for a professional installation.

Already have a pump? Our Flow Boss NO PUMP system gives you the proportioner and fittings to upgrade your existing setup.

Questions about installation? Contact us at aquavantapro@gmail.com - we're here to help contractors succeed.