Water keeps running from bath tap

[Jase H]

I recently had a new combi-boiler fitted after having no hot water/heating for 2 weeks! The first time the wife had a bath, once finished after rinsing the bath out & the cold water tap wouldn't turn off. I presumed this was a faulty tap so popped to Screwfix and fitted a new one. The same thing has just happened with the new one. Surely this cannot be a coincidence? Anyone heard of this happening before? Any help appreciated!

 

[terryplumb]

Does the tap control the flow of water ,as in can you increase and decrease the water flow ,but when you try to close fully it's just dripping ? Or is it continuing to flow non stop ?

 

[Jase H]

 

[Jase H]

Hope the picture explains! The one that I replaced was similar.

 

[HERTS P&D]

Wow, I can't even think what could be the fault.

Andy

 

[terryplumb]

Well the tap valve/s are not closing fully. Looks like you have a duff tap. Very odd though ,would be a huge coincidence. It's possible that there is some debris coming through and blocking the valve . Do you have isolation valves on the hot and cold supplies to the bath ,do you know if it's the hot or cold that continues to flow from the bath tap ?

 

[Jase H]

Does the tap control the flow of water ,as in can you increase and decrease the water flow ,but when you try to close fully it's just dripping ? Or is it continuing to flow non stop ?

Thanks for the swift reply Terry, I've posted a picture of the tap when the tap is closed fully. The water trickles out.

 

[HERTS P&D]

Try opening and closing the taps several times to dislodge any dirt, if any.

Andy

 

[terryplumb]

Yes ,I seen it prior to my last post. Can you please respond to that.

 

[Jase H]

Well the tap valve/s are not closing fully. Looks like you have a duff tap. Very odd though ,would be a huge coincidence. It's possible that there is some debris coming through and blocking the valve . Do you have isolation valves on the hot and cold supplies to the bath ,do you know if it's the hot or cold that continues to flow from the bath tap ?

It's coming from the cold supply again. Isolation valves are present on both pipes.

 

[just pumps]

Open both taps fully and let water flow out for 5 mins, hoping you will large crud pop out.

 

[terryplumb]

Isolate both supplies , remove the cold taps valve and inspect it for impurities. post a picture here if need be showing the bottom ,inside ,of the valve where the white ceramic discs are.
Whilst the valve is removed ,and covering around the tap ( where the valve has been removed ) with a large towel ,open PARTIALLY the cold isolator to flush water out from where the valve was.

 

[just pumps]

Does the same happen if you divert water to the shower head?

 

[Jase H]

Isolate both supplies , remove the cold taps valve and inspect it for impurities. post a picture here if need be showing the bottom ,inside ,of the valve where the white ceramic discs are.
Whilst the valve is removed ,and covering around the tap ( where the valve has been removed ) with a large towel ,open PARTIALLY the cold isolator to flush water out from where the valve was.

Thanks Terry, I will try this first thing in the morning.

 

[Jase H]

Today I dismantled the cold tapa cleaned the inside ceramic valve, this seems to have solved the issue. Thanks everyone for your input. Much appreciated.