Water Temperature | up to 180°F |
Pressure Washer | 3.5 - 5.5 GPM |
Discharge Hose |
3/8" ID minimum Up to 200' length |
Requirements
Water Temperature | up to 180°F |
Pressure Washer | 3.5 - 5.5 GPM |
Discharge Hose |
3/8" ID minimum Up to 200' length |
Overview
Designed for 3.5–5.5 GPM pressure washers. The Model 20 SS Bypass 2-Way Airless Foam/Spray System is a wash/rinse system for quickly diluting and applying two chemicals and rinsing through the same hose. This venturi unit draws and blends two separate chemicals or two different concentrations of the same chemical into the water stream to create an accurately diluted solution. The solution then flows through the hose and gun to the airless foam wand which draws in atmospheric air to create and project wet, clinging foam on to surfaces up close or at distances up to 25 feet with interchangeable fan and zero degree nozzles. Quick connect the fan pattern sprayer nozzle to apply non-foaming chemicals. Open the bypass ball valve to rinse at full volume and pressure.
Safety & Operational Precautions
To Install (refer to diagram on next page)
If you are connecting to a potable water supply follow all local codes for backflow prevention.
Set the chemical dilution ratio by threading one of the color coded metering tips into each chemical check valve. See chemical labels for dilution ratio recommendation or consult your chemical supplier.
To Operate
Metering Tip Selection |
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Metering Tip Color |
Dilution Ratio at GPM |
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3.5 | 4.0 | 4.5 | 5.0 | 5.5 | |
Brown |
800:1 | 914:1 | 1029:1 | 1143:1 | 1257:1 |
Clear |
509:1 | 582:1 | 655:1 | 727:1 | 800:1 |
Bright Purple |
325:1 | 371:1 | 417:1 | 464:1 | 510:1 |
White |
208:1 | 238:1 | 268:1 | 298:1 | 327:1 |
Pink |
153:1 | 175:1 | 197:1 | 218:1 | 240:1 |
Corn Yellow |
117:1 | 133:1 | 150:1 | 167:1 | 183:1 |
Dark Green |
92:1 | 105:1 | 118:1 | 131:1 | 144:1 |
Orange |
78:1 | 89:1 | 100:1 | 111:1 | 122:1 |
Gray |
75:1 | 85:1 | 96:1 | 106:1 | 117:1 |
Light Green |
64:1 | 73:1 | 82:1 | 91:1 | 100:1 |
Med. Green |
56:1 | 64:1 | 71:1 | 79:1 | 87:1 |
Clear Pink |
48:1 | 54:1 | 61:1 | 68:1 | 75:1 |
Yellow Green |
39:1 | 45:1 | 50:1 | 56:1 | 61:1 |
Burgundy |
38:1 | 43:1 | 48:1 | 54:1 | 59:1 |
Pale Pink |
32:1 | 37:1 | 42:1 | 46:1 | 51:1 |
Light Blue |
30:1 | 34:1 | 38:1 | 42:1 | 46:1 |
Dark Purple |
25:1 | 29:1 | 32:1 | 36:1 | 39:1 |
Navy Blue |
18:1 | 20:1 | 23:1 | 25:1 | 28:1 |
Clear Aqua |
16:1 | 18:1 | 20:1 | 22:1 | 25:1 |
Black |
9:1 | 10:1 | 12:1 | 13:1 | 14:1 |
No Tip Ratio Up To: | 6:1 | 7:1 | 8:1 | 9:1 | 10:1 |
The dilution ratios above are approximate values. Due to chemical viscosity, actual dilution ratios may vary. |
Troubleshooting Guide |
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Problem | Possible Cause / Solution | |
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Startup | Maintenance | |
A) Unit will not draw chemical. B) Does not foam properly C) Using too much chemical | 1, 2, 3, 7 1, 4, 5, 7 6 |
8, 9, 10, 11, 12, 13 8, 9, 11, 12 |
Possible Cause / Solution | |
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Startup | Maintenance |
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PREVENTIVE MAINTENANCE: When the unit will be out of service for extended periods, place chemical tube(s) in water and flush the chemical out of the unit to help prevent chemical from drying out and causing build-up. Periodically check and clean chemical strainer and replace if missing. |