Underfloor heating not circulating

Called out a nursery heating system which we took over maintenance on last year , with issues of some of the floors fed from underfloor heating not getting warm enough , return visit required to fit flow setters that didn’t arrive on time and check and balance the system also check the pressure ‪@polypipeunderfloorheating4997‬ ‪@MilwaukeeTool‬
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