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Old 05-23-2004, 12:24 PM   #12
kwmech
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Join Date: Mar 2003
Location: Colfax-California
Posts: 8,721
If possible pull the block plugs, [the threaded ones] on the side when you flush, this will get most of the scale and crap inside the block, then replace them with brass so they will come out easier later.
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