DUO-60 v2.3 (01/2021) Page 7
2) Seawater inlet
Seawater inlet valve
Ø The strainer should be placed as low as possible beneath the waterline so that it does
not draw in any air. It should be placed far from the discards.
Ø Pierce the hull with a Ø 21mm hole saw.
Ø The streaks of the strainer must be placed towards the front of the boat to allow the
water to naturally enter by scooping during navigation.
Ø Seal the junction with the hull properly using polyurethane sealant or Sicaflex. Do not
forget to paint the submerged part with special underwater paint.
Ø The hull valve must remain accessible for maintenance operations.
Ø Seal the valve/strainer and valve/hose connections with Loctite 577.
Cartridge prefilter
Ø The prefilter must also be installed beneath the waterline to ensure a better
yield/output. It must be easy to access.
Ø The fixing bracket is reversible to allow you to adjust the installation height.
Ø Piping connections must be made with Tricoflex Ø 12 mm (inside diameter), for the
entire seawater system as well as the pressurized rinsing system.
§ Do not forget to fasten 2 stainless steel collars on each fitting.
Ø Allow a minimum of 3 cm below the filter body for the clearance of the tank when
opening it. A screw is provided for screwing / unscrewing it.
Seawater position:
For use in desalinization
mode
Fresh water position:
For manual rinsing or
sterilization when needed
(see Appendix A3)
Closed position:
For changing the filter
cartridge (see Appendix A4)
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