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Old 01-29-2018, 07:32 AM   #4
foggysail's Avatar
City: Ashland, MA
Vessel Model: 1990 Silverton 40 aftcabin
Join Date: Jul 2016
Posts: 1,208
I have rodded a couple of heat exchangers to get remove the internal buildup. One had straight tubes, the other had tubes with a U turn which made rodding a challenge but never the less, I was able to free the passages. Something to consider trying if you cannot find a replacement.
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