| Power
washers, power sanders, spray painting equipment and the like
can be a painter's best friend -- but only when they're used properly,
according to the manufacturer's instructions.
SPRAYERS and WASHERS
work on the principle of pressure -- extremely high pressure
(up to 3,000 psi) -- through a tiny vent. As a result, this
equipment can be hazardous to both health and home when used
incorrectly or at very close range. Never point any power equipment
at any person or animal. And be sure the equipment is out of
the reach of children at all times.
Wearing the proper clothing when using power
sprayers is also important. Long-sleeved shirts, long pants,
and gloves will help protect against accidentally injecting
paint under your skin, should you unintentionally hit the trigger
while the nozzle is near you.
Also, take care not to damage the building
when using a power washer. If the pressure setting is too high,
or if the nozzle is too close to the surface, the water can
literally bore into wood and break windows or other glass.
Power tools should never be plugged into a
power source unless you are sure that the trigger is in the
"OFF" position. Also, never use power equipment in
the rain as an electrical short could result.
Do's
and Don'ts
When Power Washing
- DO
wear proper eye and hand protection when operating the equipment.
- DO
attach nozzles and/or accessories before turning on the water.
- DO
keep hands and feet clear of the cleaning nozzle at all times.
- DO
let the machine run for several minutes before starting to
power-wash.
- DO
consider using a special cleaning agent if the surface shows
heavy mildew growth.
- DO
follow the equipment manufacturer's directions with respect
to distance between the spray head and the surface -- typically
6" to 10", although this varies with the p.s.i and
spray width settings. (Moving too close may harm the surface;
staying too far away may be ineffective.)
- DO
work from the top of the wall to the bottom, rather than vice
versa. Otherwise, dirt and mildew will run down over the already-cleaned
section.
- DO
direct the water at a downward arc when cleaning wood substrates.
Spraying wood head-on can damage the siding.
- DO
power-wash the surface thoroughly. Paint adheres best to surfaces
that are totally clean.
- DO
turn off water at the source to release pressure BEFORE disconnecting
hoses.
- DO
set the safety lock when the equipment is not in use.
- DON'T fill
the fuel tank while the engine is running.
- DON'T
leave the nozzle in a closed position for more than a minute
or two while the equipment is running. The pump may overheat.
- DON'T
try to repair a leak in the hose or connection while the system
is under pressure.
- DON'T
spray stucco, brick or masonry walls straight on. The force
of the spray can cause water to penetrate cracks in the walls
and cause damage within.
- DON'T
aim the spray at windows or glass doors. The force is strong
enough to shatter them.
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