Heat exchanger cleanup and cleanout - SailNet Community
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post #1 of 3 Old 01-31-2003 Thread Starter
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Heat exchanger cleanup and cleanout

Does anyone have a procedure for cleaning out a heat exchanger? I have a 3" dia. one on my Universal M25XP that looks like it has been some time since anyone paid it any attention. I would like to "do it myself" rather than send it out.

Thanks in advance,

Mike in Noank
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post #2 of 3 Old 01-31-2003
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Heat exchanger cleanup and cleanout

I used Salt-X, 5 gallon pail, bildge pump and hose to conect bildge pump to raw water side of heat exchanger. Then another hose back to the 5 gallon pail. I ran the bildge pump untill the water was very dirty then replaced with clean water and Salt-x untill there water was not nasty any more.
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post #3 of 3 Old 01-31-2003
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Heat exchanger cleanup and cleanout

I strongly recommend that you use a non-acidic heat exchanger de-scale compound. Most
DIYers and many mechanics pickle heat exchangers and engine internals with muriatic (HCl) acid - the result being a lot of dissolved metal. Use RydLyme or Marsolve. Get a small vane pump and recirculate it through the exchanger, etc.
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