Simpson PS4240H - Manual (Page 9)

IMPORTANT: Use detergents designed specifically for pressure washers.
Household detergents could damage pump.
1. Prepare pressure washer detergent solution as required by manufacturer.
2. Place detergent siphon tube/filter into solution.
3. Make sure “SOAPER” nozzle (Black) is installed.
4. Apply cleaning solution to a dry surface, starting at lower portion of areas to be washed
and work upward, using long, overlapping strokes. To prevent streaking, DO NOT allow
detergent to dry on.
IMPORTANT: You must flush the injection system after each use by placing siphon hose
into a bucket of clean water, then run pressure washer in low pressure (Black nozzle) for
2 minutes.
To apply detergent follow these steps:
4.0 Cleaning and Applying Detergent
www.simpsoncleaning.com page 9