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Old 10-26-2011, 08:50 PM
Dave Osk Dave Osk is offline
TT Newbie
Join Date: Jul 2011
Boat: Mastercraft, Prostar 190, 1992, 351
Location: Midwest
Posts: 16
I had the exact same problem this fall with the PS190 I bought this summer. My manifolds had the 1/2 inch square female plugs mentioned earlier in this thread. They were all ready rounded out so I removed the manifolds this fall, cut a short piece of 1/2 x 1/2 bar stock and spot welded them into the pipe plugs. While they were hot I was able to break them loose with a breaker bar. Heat from welding did the trick. I chased the threads and will install new plugs this spring. I plan on using the Mercrueser plastic plugs with the drain valves. Had really good luck with them in he past.
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