Eliminating "below the water line" thru-hull fittings

[carpedium]

I am in the process of trying to make a decision on what to do with two holes at the bottom of the stern of my tin boat. Previously there was a livewell aerator pump and presumably what was used as a drain. These functions are no longer needed, and I don't like having two extra holes below the water line if I am not going to be using them.

My first idea is to cut a piece of aluminum to a shape that will cover the two holes, apply epoxy, and rivet on from the outside.

Is there a better way to do this?

Thanks for your help.

 

[jigngrub]

Re: Eliminating "below the water line" thru-hull fittings

The only other way I know of would to be weld patches over them.

 

[Bondo]

Re: Eliminating "below the water line" thru-hull fittings

I am in the process of trying to make a decision on what to do with two holes at the bottom of the stern of my tin boat. Previously there was a livewell aerator pump and presumably what was used as a drain. These functions are no longer needed, and I don't like having two extra holes below the water line if I am not going to be using them.

My first idea is to cut a piece of aluminum to a shape that will cover the two holes, apply epoxy, and rivet on from the outside.

Is there a better way to do this?

Thanks for your help.

Ayuh,.... I can understand eliminating the livewell aerator pump hole, 'n a plug would work...

I fail to see why yer eliminating the hull's Drain though...

 

[carpedium]

Re: Eliminating "below the water line" thru-hull fittings

Ayuh,.... I can understand eliminating the livewell aerator pump hole, 'n a plug would work...

I fail to see why yer eliminating the hull's Drain though...

Its not the drain for the hull, but the drain for the livewell. haha, still need the hull drain!

How would you use a plug?

 

[Bondo]

Re: Eliminating "below the water line" thru-hull fittings

Its not the drain for the hull, but the drain for the livewell. haha, still need the hull drain!

How would you use a plug?

Ayuh,... Got a picture,..??

Are they just bare holes,..?? flanged,..?? threaded,..??

 

[carpedium]

Re: Eliminating "below the water line" thru-hull fittings

Ayuh,... Got a picture,..??

Are they just bare holes,..?? flanged,..?? threaded,..??

I am sorry, I assumed that an aerator pump connection was similar on all boats. Still a little new to this! :facepalm:

 

[carpedium]

Re: Eliminating "below the water line" thru-hull fittings

A washdown pump sounds good for one of the holes....

 

[carpedium]

Re: Eliminating "below the water line" thru-hull fittings

Well, for anyone following I have decided to install a washdown pump to occupy one of the holes, and the other will be patched with aluminum that has a flange on it for mounting a transducer... kill 2 birds with one stone!