Removable Manual Bilge

[kaman]

Decided to add a manual bilge to my Sib for two reasons.

1 Bailing water accumulated by spray, breaking waves and rain when out in the boat on the water.

2 Pumping out wash water after the Sib has been washed out (the drain plug is around 25mm from the bottom of the sib so there's always a good few litres of water left in there after washing that don't come out the drain)

I wanted the pump to be mounted to the transom but didn't want to drill more holes in the transom.

Attachment 111154


I decided to use my existing fishing rod holders to attach the pump.
I widened the block to accomodate the pump.
The block is a piece of pressure treated wood wrapped in duct tape.
I've used this for my rod holders for 5 years with no need to paint or replace the tape.
A simple wipe with a soapy cloth cleans the salt off.


Attachment 111155


I use the factory fitted honwave eyebolt (permanently sikaflexed in the transom) to clamp the block to the transom. SEE BOLT IN THE PIC

The aluminium transom runner which holds the floor in serves to hold the block to the transom by preventing it rotating.
The eyebolt clamps it to the transom.

Attachment 111156

One eyebolt to fit and remove the block

[kaman]

Mobile app playing funny buggers - here are the missing images from previous post

[kaman]

Had to modify the suction end of the pump to accept a smaller hose to fi through the space in the floor at the drain plug.
Pump works well and expels the water out over the transom.
Cheap and cheerful - the way I like it.

[Max...]

This forum really needs a "most holes drilled in a transom" competition!

[kaman]

Off the top of my head I've got 14 holes in mine😨

[jeffstevens763@g]

does the pump work ok with a tube extension on to fit a smaller gap kaman

[jeffstevens763@g]

Originally Posted by kaman

Off the top of my head I've got 14 holes in mine😨

just adding value

[kaman]

Hi Jeff yep the the pump works like a champion with the tapered extension and small hose.
If anything it's suction has been concentrated / improved due to the smaller siphon.
I used epoxy to fit the tapered extension piece (old air bed pump adapter) into the end of the pump.
It was a snug fit and worked fine even before I used epoxy on it.
After thd epoxy set I built up sheets of glass matt and resin over the top to strengthen it further.
Works a treat.

[jeffstevens763@g]

Originally Posted by kaman

Hi Jeff yep the the pump works like a champion with the tapered extension and small hose.
If anything it's suction has been concentrated / improved due to the smaller siphon.
I used epoxy to fit the tapered extension piece (old air bed pump adapter) into the end of the pump.
It was a snug fit and worked fine even before I used epoxy on it.
After thd epoxy set I built up sheets of glass matt and resin over the top to strengthen it further.
Works a treat.

cheers going to get one was looking yesterday but the gap i have is only 3/4 inch so a squashed hose will do fine just for the bit of water left in that the drain wont empty.

jeff

[Poly]

Originally Posted by kaman

Off the top of my head I've got 14 holes in mine😨

think of the weight you are saving ;-)

[kaman]

Lol!
Poly there would be a bit of weight loss if I hadn't plugged the holes with stainless steel bolts. That coupled with my lard arse at the tiller makes for a skyward facing bow.

[willk]

Originally Posted by Poly

think of the weight you are saving ;-)

Stronger too, IIRC!


I have one of those pumps in the cabin, in case of water ingress. Kinda hope to not need it!!!

[kaman]

Howdy Wilk.
I used to use a small 5 quid ebay oil syphon to pump out water from the sib.

After the third one broke last year I decided to buy something a bit more robust.
Most Sibs are wet boats - particularly if you try to make headway against a chop.

My Honwave gathers water from rain, spray and breaking waves and stores it beneath the floor sections.
There it runs back and lies at the transom.

Trouble is once there is a sizeable amount of water under the floor it squirts up like a whale spray through a blow hole which is the drain plug cut out.

This seem to happen when you plough through sum rough waves. This is caused by the floor to compressing and forcing the water up through the drain plug cut out.

It really does my head in getting salty water sprayed up into my face.

I like the pump fixed to the transom as you would need 2 hands to position / hold the pump and pump the water away otherwise.

I can set course at sub planing speeds tighten the tiller steering then use my free tiller hand (left) to pump the water out.

Going at sub planing speed makes the bow rise and causes the water under the floor to run back to the transom where the pump can suck it out.