SEAWATER FEED PUMP AND PRIMING RESERVOIR
With the aid of the priming reservoir, the feed pump is able to prime the raw water up to a height of 9ft.
Mount the feed pump in a dry location not higher than 9ft above low water level. Mount the priming
reservoir with the outlet (lower connection) at the same level as the intake of the feed pump in a dark
location (inhibits growth of algae). Connect the intake of the feed pump and the outlet of the priming
reservoir with 3/4”PVC pipe or directly if possible.
The suction pipe (PVC 3/4”) connected to the intake of the priming reservoir (upper connection), need to
lead in one single
vertical
run below the waterline. From this point the pipe can run
submerged
to the
supplied intake strainer (max 60ft / 20meters) where clean seawater can be taken in. A ¾” non-return
valve is to be installed in the suction pipe at any position below the waterline.
HIGH PRESSURE HOSE
Never bend the high pressure hose tighter than a 4”/10cm radius.
Run one of the high-pressure hoses from the outlet of the HP pump (O ring sealed fitting) to the O ring
sealed fitting at the end of the membrane that is marked “IN”.
Run the second high-pressure hose from the flow control box to the O ring sealed fitting at the end of the
membrane that is market “OUT”.
CAUTION: WHEN CONNECTING THE HIGH-PRESSURE HOSE FITTINGS TO THE
MEMBRANE HOUSING(S), AVOID TURNING THE MEMBRANE VESSEL FITTINGS INTO
THE END CAPS (COUNTER WITH SUITABLE SPANNER). THE END CAPS ARE MADE
FROM INDUSTRIAL PLASTIC AND CAN CRACK IF OVER TIGHTENED.
PRODUCT WATER TUBING
Connect the blue product water tubing or for longer runs than 15ft / 5m a 1/2" PVC hose or pipe from the
center fittings of the membrane housing(s) to the bottom inlet of the flow meter, in the flow control
panel. Connect the tubing or hose from each output port of the 3-way valve to your fresh water storage
tanks and to a taste/test station of your choice. Do not allow the product line to become blocked while
the system is running. It must be avoided that chlorinated water from your storage tanks flows back into
the RO membranes.
The Product water can be led to the storage tanks up to a height of 20m/65ft. In this case a non return
valve must be installed in the product line to protect the membrane from back-pressure.
REJECT WATER TUBING/HOSE
Connect the outlet of the pressure control valve on the back of the flow control panel with a 1/2”
reinforced PVC hose to a reject (brine) 1/2” PVC pipe. The brine should be disposed of as far as
possible (30ft / 10m) and down current from the seawater intake.
