Waterproofing a sounder installation

hi kayak fish.

the hole that needs to be sealed is the hole where the transducer/power cords penetrate through the hull to the inside of the yak.

Although the cables are only a few mm thick, unfortunately at the end of that cable is a stinking big connector plug that connects onto the back of your screen. the problem therefore is that in order to seal properly you need to find a gasket that can surround the cables but can still go over the top of the connector plug.

On my unit the connector plug is approx 20mm diameter *(not sure on the Eagle unit diameter but think it is approx 16mm).

What I've done is found a gasket that fits the 20mm hole that is drilled in the yak, but only has approx a 5mm opening in the centre. Unfortunately in order to get it around the cables you need to cut the gasket from edge to centre, slip it around the cables and then seal it up with silicone or the like.

I'm sure theres some sort of plumbing fitting which will work better and I'm off to the hardware this weekend to have a look, but at this stage that's the best solution I've come up with.

If anyone has a better solution I'm all ears!

Hi Guys! Have not posted to the forum for quite some time now!
Thought I would mention my idea that we have just been incorperating in my Dorado a be -t being Fibreglass you could do the same with poly - in the case of poly you need to have a tube - pipe which is of the same material as your yak with an internal size big enough for any cables and transducer fittings to pass through.
The tube should be no less than 25 to 30 mills long, have this plastic welded to your yak (once this is done cut the hole out in the centre - I use a (tube size that fits a rubber brewing kit plugs which fit inside this tube with the cables passing through that first) - you can use this cork by it self but the recommended way is to obtain a piece of bicycle tube at your required length - slip all your cables through this bicycle tube and then through your newly welded in tube which also has the brewing cork fitted in hole on your kayak.
You can use a small amount of selant on the ends of the bicycle tube, slip the bicycle tube of your pipe (should be a tight fit) and ziplock - cable tie this in place, on the out going cable end of the bicycle tube you should have a min of 2 cable ties and a small amount of sealer inside - cable ties should be 10 mills apart providing a really tidy water tight seal that will take any new items through this and none if you decide to sell your yak things are still professional and water tight.

Have not been out yaking much as limited time has only permited me to work on the Dorado filling in the side handles - fitting 2 pumps and some deck and rod holder changes. Could post some picks if the interest is their in a couple of weeks on happenings.

Being watching Hairmicks progress on his S&G with a great deal of interest now I have had my hands dirty in fibreglass - I wouldn't change to much of the Dorado format If I did a S&G Hybrid strip built of the Dorado - only do away with the crate in the rear in favour of water tight bagged hatch and livi bait tank behind me.

Hope this gives you guys some idea's on cable running which could also be used for rudder cables with great ease and pro.

Mike