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Flow checks sticking open?

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burnerman_2
burnerman_2 Member Posts: 297
in THE MAIN WALL
i have opened them up all the way tapped on them with a hammer and mostly solves the problem like they said rust dirt ect. only thing u can do is completely drain system and flush but then u may miss some so open and tap

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  • Matt_40
    Matt_40 Member Posts: 4
    Flow checks sticking open

    Flow checks randomly stick open and heat gravatates thru loop out of control. Any good advice. Ive tried formula #5 additive, no luck. Is there a good cleaner out there. Why does a flow check hang up? Thanks
  • Timco
    Timco Member Posts: 3,040


    Rust, corrosion, time...no real reason. I like spring checks on the returns, and IFC type circulators to reduct the risk of rattling & sticking swing check valves.

    Tim
    Just a guy running some pipes.
  • Unknown
    Unknown
    Matt

    Tim`s right, but no matter what CV used a good system cleaning will help, I flush mine with TSP, then rinse well after.

    Dave
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