Lagoon 52 - Page 29

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4.5.2 . Functioning of the black waters retention system
The system functions as described on the diagram below.
The toilets are only drained in the waste holding
tanks which are then drained either:
by pumping: cover on the deck (1)
or by drainage in the sea: valve (3)
After each use, rinse the whole system:  ll in the
tank with fresh or sea water then empty it.
Use domestic products for cleaning.
The whole system has to be drained when the boat
is halted and the temperature is negative.
For the respect of the environment:
Do not unload the retention tanks close to the
coasts, use the pumping systems provided by
harbours or marinas to empty the tanks before
leaving.
Please check that the outlet valve is closed in order
to avoid any accidental unloading.
BLACK WATERS CIRCUIT
EQUIPMENT
2
3
1
2
1
2
1
3
2
1
3
3
1 - Drainage cover on the deck
2 - Waste holding tanks
3 - Outlet valve on the hull
2
1
5
4
3
4 - Fresh water tank feed
channel
5 - Vent