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expansion of triangle tube indirect

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tommyboy1
tommyboy1 Member Posts: 5
in THE MAIN WALL
Has anyone SEEN the air vent move upon filling the system with water ever?

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  • RJMCTAFO
    RJMCTAFO Member Posts: 113
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    Not on filling but I witnessed it during an annual tune-up. The hot water was turned on then off at the kitchen sink and the vent moved quite a bit. Found water at 90 + PSI. Installed a whole house pressure reducer and potable expansion tank. Could not duplicate after that.

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