water on deck - thoughts ?

Bushrider · 01 October 2019, 16:20

I bought recently a very decent and well maintained SR6 . The boat has the typical 2 elephant trunks but no bilge pump .
Currently there are still the 2x 60hp Yamahas installed on the back and the boat sits very high in the water .
These Yamahas I will replace with 2x 90 ETECs which will add around 80ish kg to the stern .
From rain and splash there is always some water on the deck .
On my previous Osprey VM I had the same issue . Te bilge pump on the deck never got all water out until a deep bilge was installed .
On the SR6 I have another idea and any thoughts are welcome .
The boat has a closed hull and an under deck inbuilt tank .
From outside is a bung installed to drain the water when the boat sits on land or trailer .
On the deck I have the 2 service hatches which allow very quickly to check whats going on inside the hull .
My idea is now to install in the deck 2x water drains to collect the water in the hull and to install a bilge pump (or 2) there to get the water out from the boat .
Through the service covers on deck it would be quite easy to install sealed "through deck" piping .
Did I miss or overlooked something ?

Stresspill · 02 October 2019, 20:15

Hi!
I have exactly the same issue and I have a bilge pump inside the hull, the hose goes through that middle plate from where the fuel hoses are routed through the deck. When on marina I keep one of the hatches open, so rain water falls inside and gets pumped out. I also have a 30W solar panel that keeps the battery full. I'm planning to make a deck sump that would fit into one of those TCL3 hatch openings, and then I could keep the deck "sealed" and the water would gather into that insert/bucket. Bilge pump would also be installed into there. The plan is to 3d-print that deck sump bucket and then it would just drop in and replace one of the TCL3 hatches.

Bushrider · 03 October 2019, 05:36

Hi neighbour - I am working in StPetersburg !
Thanks for your input - good stuff .
Good idea to go through the plate with the fuel hoses - saves one hole in the deck .
For draining the water I am thinking about using one of those drains as attached near the stern .
That will get out really all water .
Similar system is used on my Scorpion diesel .
The one which can be sealed with the plug is probably preferred cause when I have the elephant trunks down (seldom) there would be permanently some water going down to the bulge pump - which also does not make sense just to circulate the water
The idea with the solar panel I also like .
Attachment 131019 Attachment 131020 Attachment 131021

Stresspill · 03 October 2019, 07:36

One option is to have a switch for the pump. To be able to turn it off when the trunks are open. But that then opens the possibility to forget switching it back on

Bushrider · 03 October 2019, 07:41

Quote:

Originally Posted by Stresspill

One option is to have a switch for the pump. To be able to turn it off when the trunks are open.

This is no option - then the hull fills with water ..

Stresspill · 03 October 2019, 08:02

Ah, yes, of course. I was thinking my deck sump thing. Instead of having the whole hull as a sump.

Brian · 03 October 2019, 09:15

If you use a drain plug, then use the longest, metal one available.
Plastic lands are no good.
I suggest one that is a least 4 inches long.

Bushrider · 03 October 2019, 09:18

Why so long ? 10" ??
I used to plug on my former 5.4 the small holes near the bow with the short plugs shown in the picture above - never had an issue .