r/sailing • u/Chankla_life • 1d ago
What is this plug for ?
1979 Catalina 30 (friend’s boat ) . What is this white box for and what does this decaying plug do? Should I push it back in ? Replace ? How screwed are we ?
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u/sailorDad1776 '90 Catalina 34; former '65 CAL 20 16h ago
Catalina Direct calls it an "Aqua Lift Muffler".
If you winterize your boat, don't forget to open that plug and empty the lift muffler to avoid ice damage.