Tried to change the pencil zinc in the heat exchanger of Touche's Universal 25XPB today. Normally a 5 minute job.
Unfortunately, this time the zinc chose to stay in the nipple once the holder was unscrewed. Access is poor and I couldn't grab the little piece sticking out enough to twist it out. After much mental exercise, I had an epiphany. I took an extra zinc holder, drilled and tapped it for a 1/4 inch machine screw. I threaded the holder back into the nipple, tightened the machine screw and pushed the zinc into the exchanger. Here's a pic. Hope the link works. https://drive.google.com/file/d/16jIYQaeFDv8-yo7ZhwBm8-78NJTs4QWp/view?usp=drivesdk I pulled the end cap off and removed that zinc and pieces of previous zincs. This is something one needs to do every 3-5 years anyway. The zincs break off and accumulate in the exchanger. They will eventually partially block flow through that pass of the exchanger. See: https://pbase.com/mainecruising/heat_exchanger If you pull the end cap of your exchanger, do not reuse the gasket. Use a new one! Dennis C. Touche' 35-1 #83 Mandeville, LA
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