New tap banging and spluttering when turned on

[LianneB1]

I have had a new tap installed and when turning it on it judders, makes the pipes bang and splutters. I was told this was air in the system, but, I have turned the water off, opened all taps to allow any air through, turned the water back on and it still does this. Any suggestions?

Thanks, Lianne

 

[Newboy]

Turn the water back on and open the new tap a little - the water will force the air out of the pipework.

Turning off the water and opening the taps won't get the air out of the piepwork

 

[LianneB1]

Unfortunately it didn't work. What I have noticed is that when it is banging / spluttering as you turn the tap it almost feels like there is a knot in the tap threads - not a very good description, but the best way I can think of describing it. I have looked for a way to get the top off the tap but cannot see any way of removing it - it is only a cheapie from B&Q.

 

[Newboy]

A bit more info required

Which tap was changed?

When you say that letting the tap run didn't work - what exactly happened?

 

[LianneB1]

It is a mixer tap in the kitchen, but, the problem only occurs with the hot tap. The pipe comes from a condensing boiler through the bathroom (the taps in there are ok) and then runs to the kitchen tap.

I ran it really slow for about 15mins, when I first tried it it seemed to have cured the problem, but, within about 10mins the problem was back.

Thanks for your help so far.