Hi,
Two of the three hot water taps in my house splutter then die then come back into like again in a continuous cycle within a few tens of seconds of running them.
I have tried blasting cold water through the hot tap using a hose, and this relieved the problem for a few minutes, but then it returned.
The header tank has enough water in it to feed the cylinder throughout.
Could air be getting into the pipes somehow?
A bit about the system:
I have a hot water cyclinder on the first floor with a header tank directly above it - the two are combined as a single unit.
There is loads of scale in the header tank, but the pipe that connects the two appears clear.
A 15mm pipe from the cyclinder runs to the ground floor where it supplies three taps and a washing machine.
The kitchen sink tap is supplied via a narrower guage pipe (