2-7. ROWPU ASSEMBLY AND PREPARATION FOR USE - cont.
Setup Raw Water Svstem. Refer to figure 2-36. Working from the ROWPU control panel to the water
source, connect components of the raw water system as follows:
To prevent contamination of product water system, do not use hoses intended for
potable product water in the raw water system. Product water hoses are identified by
a blue stripe running the full length of the hose.
Position hoses so that a tripping hazard does not exist in front of control panel.
Ensure all gaskets are in place and quick disconnect couplings are locked. Raw water
pumps will not prime if suction hoses draw air.
ROWPU should be positioned as close as possible to the water source. If ROWPU
is less than 60 feet from water source, only raw water pump No. 2 is required for
Raw water pump No. 1 has a female coupling on the pump suction port and male on
the discharge port. Pump No. 2 has female couplings on both suction and discharge
Ensure all gaskets are in place and quick disconnect couplings are locked.
Use the minimum number of hoses required to connect raw water pump to No. 2 to
Connect canvas discharge hoses between the RAW WATER coupling on the control panel and
discharge coupling of raw water pump No. 2.
Connect canvas discharge hose between suction coupling of raw water pump No. 2 and discharge
coupling of water pump No. 1.
Use the minimum number of suction hoses required to reach the water source.
Connect three hard rubber suction hoses to suction coupling of raw water pump No. 1.
To prevent damage to the ROWPU, do not operate raw water pumps without strainer or
ocean intake structure.
On Models H-9518-1, H-9518-2, and H-9518-3, an ocean intake system is included with
the ROWPU. The ocean intake system allows seawater to be extracted from the ocean.
However, it can also be used with freshwater sources (lakes, streams, etc.) as well.
Depending on the site, the ocean intake system can be used or the strainer and float can
be used. Refer to para. 2-7o.1 for installation instructions.
Connect strainer to end of suction hoses.
Connect float to strainer with enough rope to allow strainer to go under water, but not touch bottom.
Place strainer and float in water source. Avoid placing strainer near sandy areas.
2-64 Change 2