0901154 Rev: A (04/10)
Page 7 of 12
PROBLEM
SOLUTION
(7)
Foam comes out wet regardless of where the Wet
Foam-Dry Foam is set.
Checkvalve may be plugged and needs replacing.
Ball valve may not be open all the way on foam
wand. This may happen if the operator is standing
too close to a wall and closing the ball valve slightly
to reduce splash of foam.
(8)
Unit foams at reduced pressure.
Check the air supply into the unit. If air pressure is
low, turn unit off until air supply can bring pressure
back up.
If you know the air supply is 60 PSI or higher, check
the internal air gauge which should read near 60 PSI
or higher. Adjust Pressure Regulator to required
minimum 60 PSI.
If both of the above check out okay, the S.S.
packing could be plugged. Remove and clean it
per the instructions to the right:
(i) Be sure to turn off air to unit and open the cut-off
valve on the discharge hose to remove back-
pressure on the unit.
(ii) Remove the hose barb from the Discharge Tee.
(iii) Remove the screen retainer and packing from inside
the tee.
(iv) Clean any particles from the packing and the screen
retainer.
(v) Replace the packing and screen retainer into the tee
and replace the hose barb fitting. Use a pipe thread
sealant to prevent leaks.
(9)
Pump does not stop with ball valve (wand) turned
off.
Chemical lines not primed and/or air leaks in the
pump tubing.
