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Wa t e r Pu m P
OP e r a t O r 's ma n u a l
13
1. Select a rm, level site as near the water source as possible. Never
exceed a suction lift (A) of 7.5 m (24 feet) or water will not ow.
Make sure pump will not move due to vibration and/or the pull
from the weight of suction hose when full of water.
2. Total vertical discharge (B)is the distance the pump is capable of
lifting water from the surface of the water to the discharge hose
end. The distance must not exceed 29 m (95 ft.), otherwise no
water will ow.
3. Make sure all hoses and pipe connections are air tight, and all hose
coupling gaskets or o-rings are installed.
4. Keep prime port plug and pump drain plug tightly secured in place
during operation.
5. Make sure strainer is in place.
6. Maximum pump efciency is obtained by:
• Keeping hoses straight and avoiding kinks and sharp bends in
hoses.
• Using shortest suction lift practical.
• Using as few connecters, elbows and adaptors as possible.
• Keeping the pump and associated equipment in good operating
condition.
p r I m I n g t h e p u m p
1. All ECHO pumps are self-priming centrifugal pumps. Only a
single priming operation at the beginning is needed to allow the
pump to be used continuously or intermittently.
2. Remove prime port plug (A) and ll pump housing with water.
3. Replace prime port plug securely, making sure the gasket is on and
in good condition.
With suction intake and strainer in the water to be pumped, start the
engine. (See Starting the Engine.)
IMPORTANT
When priming the pump, operate the engine at half throttle.
Should the engine be operated at full throttle during initial prime,
water surges alternately followed by air pockets will cause over-
speeding, resulting in possible engine damage.
NOTE
With engine running at approximately half throttle, the priming
time depends upon the length of suction hose. Priming time can
be as short as 30 seconds when lift is less than 1.5 m (5 feet) or as
long as 5-7 minutes when pump is some distance from the water
and using maximum lift of 7.5 m (24 feet) at sea level.
A