Operation – Using the Pump (continued)
19
4. Pressure
switch
operation
The pressure switch reacts to outlet pressure, and interrupts power at the
preset shut-off pressure indicated on the pump label. When outlet pressure
drops below a predetermined limit the switch will close and the pump
operates until the shut-off pressure is achieved. The shut-off pressure is set to
factory calibrated standards.
Note: If the plumbing is restrictive or the flow rate is very low, the
pump may re-pressurize the outlet faster than the fluid is being
released, causing rapid cycling (*ON/OFF within 2 seconds). If the
pump is subjected to rapid cycling during normal operation, or for
infrequent periods, damage may occur. Applications which exhibit
rapid cycling should have restrictions in the outlet minimized.
5. Mixing soft
wash mix
Add chemical to tank through fill cap:
a)
Wear personal protective equipment while mixing. Goggles,
gloves, long sleeves, and pants are recommended. NOTE: Clothes
may be damaged by bleach.
b)
Add to tank in this order:
1.
Household bleach (6% sodium hypochlorite
concentration)
2.
NorthStar Max Cling Soft Wash Surfactant (NTE #81297
or #81298)
3.
Water
c)
Recommended mix ratios
NOTICE:
Never spray undiluted bleach. It must be mixed with water and
NorthStar Max Cling Soft Wash Surfactant. Failure to do so could result in
unforeseen damage to vegetation or the cleaning surface. Always test soft
wash mix in an inconspicuous area to confirm compatibility.
NOTICE:
Not for use on painted wood surfaces. Use only on hard, non-
porous surfaces.
WARNING:
Never exceed 3%, higher concentrations will increase the risk
of damage to the sprayer. For difficult stains, repeat applications may be
required.
6. Before
spraying
Follow the steps below before spraying:
-
Cover all electrical outlets and light fixtures and remove any
decorations on surfaces to be sprayed.
-
Using fresh water from a garden hose, soak any vegetation that may
come into contact with soft wash mix. If cleaning roof with gutters,
soak area around downspouts with fresh water.
NOTE: To eliminate the need for a ladder for difficult to reach places, such as
tall roofs, use the NorthStar telescoping wand (NTE #81140). To reduce
fatigue, improve spray precision, and improve productivity while using a
telescoping wand, use with NorthStar tripod (NTE #157143).
