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  1. Zippymark

    Zippymark GSR

    I've been asked to perform a pressure test on a soil stack i've recently installed for a new build and i'm using an inflatable test bag for the bottom and i cannot get it to seal. I flushed the toilet thinking maybe a bit of water on top might help it and i can see it dripping though. The bag said to inflate to 1bar, which i did, i even tentatively went up to 3bar and it still wouldn't seal. It was on a straight bit of pipe. Any ideas?
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    Bit of silicon grease on the bag normally helps
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