Bad check valve stopped all hot water flow a few weeks ago. I removed it, removed the guts, and re-installed. It never freezes here, so I never have to winterize system. From what I read, the check valve only comes into play when winterizing.
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'05 F250 6.0 Bullet Proofed - Sold
'17 F350 6.7 Lariet
'02 Montana 3280RL Upgraded a bunch.
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