7 . Hull openings, sea cocks
Openings under the waterline are possible weak points, to which we have therefore paid a lot
of attention.
The hull openings are made of a brass alloy and where necessary fitted with a fast shut-off
ball valve. This basic set-up is completed by a suitable hose connection on the hose side of
each valve. Each hose is secured by two clamps.
List of hull openings
1. 1 1/2” hull opening for log
2. 1 1/2” hull opening for echosounder
3. ¾” hull opening with ball valve for
inlet sea water pump (option)
4. 1 ¼” hull opening with ball valve
Sink discharge
5. ¾” hull opening with ball valve for
inlet WC
6. ¾” hull opening with ball valve
washbasin with exit for shower outlet
7. 1 ¼” hull obening with ball valve for
Drainage life rafte storage, cockpit
8. 1¼” hull opening with ball valve
Holding tank outlet
9. ¾” hull opening with ball valve for
Drainage cleanout warm water
supplyer
10. 2” exhaust exit
Figure 24: Hull openings,
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