Attend site to inspect burst water pipe<br />
Inspect all water connections in the ceiling cavity through manholes, and remove the extraction fan vent for better access.<br />
After inspecting all joins I could see that one join on a tee piece wasn't connected properly and a drip of water was forming on the join.<br />
I had to cut a hole in the plaster ceiling to gain access to the faulty join.<br />
I cut out the old tee and replaced it with a new tee, 2x straight joiners, and some pipe.<br />
Tested and commissioned.<br />
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From the looks of the joint, I believe the tee piece was never installed correctly from the start.