It’s just one tap though, the other end of the braided pipe goes into one of those silver barrel things that looks a bit like an isolation valve but with no turning bit for isolating.
Hi, the pressure on my boiler was low, so, I opened the filling loop (little black tap on silver braided flexi pipe) topped the pressure up and turned it off. however the pressure didn’t stop rising. Now the overflow outside is just like a running tap. Now I can lower the pressure by turning the...