ADringer Posted October 23, 2022 Share Posted October 23, 2022 We've have wet UFH installed and just started to run it now the screed is dry enough. I've set all the flow rates for the zones according to the design, but when I come back after a short time two of them have dropped back to 0. I can open the flow gauge further and get it back up, but then drops again shortly. What does this mean? Air in the system? A leak on the loop? Thanks. Link to comment Share on other sites More sharing options...
JohnMo Posted October 23, 2022 Share Posted October 23, 2022 Good chance it's air. You will need to bleed the system. Link to comment Share on other sites More sharing options...
ADringer Posted October 23, 2022 Author Share Posted October 23, 2022 1 minute ago, JohnMo said: Good chance it's air. You will need to bleed the system. Cool, that's what I was hoping. Thing is I just found a leak in one loop where the builders had retroactively installed perimeter insulation and must have nicked a pipe 🙄. Was hoping that these other loops were just air. Link to comment Share on other sites More sharing options...
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