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It looks like part of the water meter fit. You should get in touch with the Anglian Water Service if you have a problem with thier gear. They should check it and if it is faulty they will replace it for free.Noticed this today, no visible sign of leak from the gauge externally but leaking or has leaked internally as you can see.
Will ask my plumber to replace the gauge but is this at risk of leaking / bursting with water coming out of it?
Reply to the thread, titled "Water inside a PRV gauge." which is posted in UK Plumbers Forums on Plumbers Forums.
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