My drains through the transom appear to be 1 1/8” brass tubes. On all but one, they are flared on both sides of the transom. On the outside, the flanged portion has broken on all but one. I am guessing that the installed these with the flange on the inside and then used some sort of flaring tool to create the outer flange and it’s breaking down. I plan to clean around the tubes and put sealant in as a short term fix. Has anyone seen this before? I assume there is wood behind here somewhere.
The second picture shows the one inside without any flange.
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The second picture shows the one inside without any flange.
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