In the past 6 months, I've had several small holes in the CPCV piping from my hot water heater to the air handler unit for my heating. It is a water heated (Apollo) system. This piping is grey in color, different from any CPCV piping that I can find at any hardware, Lowes, or Home Depot stores. All I can find is off white CPCV piping. The grey is much more flexible. Someone said that this stuff may be what was recalled several years ago. Anyone got any ideas? I have made repairs using the CPCV couplings and glue.
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