cold water tap turns itself off

[chrisw99]

Was wondering if someone can clear up a little mystery for me. After having a burst pipe in the bathroom under the basin last week, I replaced it and took the opportunity to replace the taps as well.

Since then all has been fine, but I've noticed when I turn the tap on enough for it to be at full flow at high pressure, and then let go, it will gradually reduce and then stop. It will only stay at full flow if the tap is opened a lot more.

Dodgy tap? Was just a cheap B+Q one.

 

[Nige F]

Dodgy tap? .

That is right

 

[chrisw99]

That is right

Thought so

Why would this happen? If the tap valve is open enough to let 20 litres/min flow out, what would make it stop flowing?? I would have thought the pressure of the water through it would have been enough to keep it forced open compared to anything like gravity or whatever is stopping it?

 

[Nige F]

The water can get behind the washer/jumper and push it down - good ones are engineered to overcome this

 

[HERTS P&D]

Ghost!

Andy

 

[chrisw99]

The water can get behind the washer/jumper and push it down - good ones are engineered to overcome this

My own fault for buying the cheapest B+Q had to offer, but didn't have much choice when the water was off on a Sunday morning whilst I had to get replacements.

Reading the reviews on the website, lots of people also suffer from the same symptom of the cold turning off after a few seconds so it isn't just me!

 

[Nige F]

I'll bet the taps come from the Yuk Fu brass foundry on the banks of the Yangtze

 

[chrisw99]

I'll bet the taps come from the Yuk Fu brass foundry on the banks of the Yangtze

If only they were brass. They're "chrome", (well, some bits are plastic but painted to look like chrome!)

 

[Nige F]

Even worse