INSTALLATION INSTRUCTIONS
Mount the desalination system in a cool and dry location, not higher than 30ft above low water level at a
distance not further than 100ft / 30m.
The electrical connection should only be done by a professional electrician. Check the correct
voltage before installing the system.
The “MAIN” marked cable is to be connected to the power supply. The smaller cable, marked “PUMP”
is to be connected to the seawater feed pump or should be insulated / removed where pressurized
seawater is available.
FRESH WATER FLUSH FILTER
Install the fresh water flush filter housing at a location near the desalination system. Connect the flush
port of the three-way service valve at the pre-filter assembly with the outlet of the flush filter housing
(OUT). Supply pressurized fresh water to the shut off valve of the flush filter housing.
SEAWATER FEED PUMP AND PRIMING RESERVOIR
(Optional Equipment)
With the aid of the priming reservoir, the feed pump is able to prime the seawater 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. Avoid elbows/90 degree fittings in your plumbing.
The complete pump head can be turned in case the outlet direction is not suitable for your installation.
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.
Connect the outlet (upper connection) of the priming reservoir with the marked (Seawater In) port of the
system’s pre-filter housing.
If the seawater or seawater well level is lower than 9ft below the location of the system’s seawater feed
pump, an additional supply pump will be needed. Submergible pumps are preferred and should feed the
system’s supply pump with a pressure of 3 to 20psi at a flow of 3.6gpm. The priming reservoir will not
be necessary. The use of an intermediate seawater storage tank at the level of the desalination system
also might be considered.
The use of a standard back washable sand filter, as used for swimming pools can reduce pre-filtration
cost especially when an open seawater intake is used.
