Dramm FM20 Owner's Manual - Page 5

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Connect air line to foamer. Air required is a minimum of 5 CFM @ 60 psi.
More air volume may be required with longer hose lengths.
1.
Fill the tank with combination of water and foaming chemical, Follow all chemical manufacturer
mixing instructions.
2. With ball valve in the closed position, plug an air line into the air fitting.
3. Slowly open the ball valve.
4. Adjust the wet foam/dry foam valve to desired wetness or dryness of foam following the steps
below:
A. Close valve completely in clockwise direction
B. Open valve in counter-clockwise direction 3 complete turns
C. Continue to open valve in 1/4 turn increments allowing 30 seconds between
adjustments until proper consistency of foam is achieved.
D. If the valve is open too far it can cause the pump to stall out. If this occurs begin
begin again with step A.
5. After use flush the unit with fresh water for 5 minutes.
6. Disconnect air source from the air fitting.
7. Open ball valve on nozzle and relieve pressure from the system before storage.
ACCEPTABLE PRODUCTS
–ALKALINE CLEANERS
–CAUSTIC CLEANERS
–SANITIZERS
–PHOSPHORIC ACIDS ONLY
OPERATION INSTRUCTIONS
USEABLE PRODUCTS
UNACCEPTABLE PRODUCTS
–STRONG ACIDS
–ALL HYDROCARBONS
–D-LIMONENE
Foamer Manual
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