john Gonzalez
Member
I have 7 thru hulls. I am replacing all with new fittings and seacocks. I will glass over one opening at the area of the head but will use the rest of them.
Problem is that only one of the 6 has a typical flat mushroom fitting so that the inside of the boat is flat and so will the backing plate. Making that one is not a problem. However, the other thru hull fittings (5) have flush thru hulls fittings on the outside of the hull so the inside of the boat is in-setted to accomodate the flush thru hull fitting. So how do I make the backing plate for the rest of the seacocks backing plates when there is a bump inside the boat to allow for the lip of the thru hull to be flush on the outside of the boat? I have look over Youtube which has some instruction and other online instruction but none addresses flush seated thru hull fittings having a rise or mound inside the boat the shape of the flush fitting.
Any suggestions on making a backing plate. Should I do it out of wood and ground out a hump to fit over the hull shape. Hope all this makes sense.
Problem is that only one of the 6 has a typical flat mushroom fitting so that the inside of the boat is flat and so will the backing plate. Making that one is not a problem. However, the other thru hull fittings (5) have flush thru hulls fittings on the outside of the hull so the inside of the boat is in-setted to accomodate the flush thru hull fitting. So how do I make the backing plate for the rest of the seacocks backing plates when there is a bump inside the boat to allow for the lip of the thru hull to be flush on the outside of the boat? I have look over Youtube which has some instruction and other online instruction but none addresses flush seated thru hull fittings having a rise or mound inside the boat the shape of the flush fitting.
Any suggestions on making a backing plate. Should I do it out of wood and ground out a hump to fit over the hull shape. Hope all this makes sense.