Unidentified object under kitchen sink

[doppiooo]

I have a slight leak on the stopcock in the kitchen and between the stopcock and the sink tap is a snmall grey coloured valve type thing. It is shaped like a hat with a brim if you can imagine it. The only wording on this thing is on the brim part it says 'Cartridge with filter' and on the top of the hat part it says '3 Bar' in red writing. I would be grateful if anyone could shed some light on what this is. I figured it is either a water filter of some sort of pressure control. The thing is if i dont need it I will ditch it as I want to put another stopcock in the line while leaving the old one in place as it is stuck open and space is limited.

Thanks

 

[Plamber]

its a pressure reducing valve. you should keep it. you may have an unvented cylinder or something in your house that requires the water to be at 3 bar. not a good idea to ditch it.

You should be able to turn the water off from outside your property if the stopcock is stuck

 

[doppiooo]

I understand what you are saying Plamber but I have storage heaters for heating the place, no gas, no central heating just an immersion heater which has a vent pipe to the loft tank. I have just basic stuff like sinks and WC the only other appliance is an electric shower and thats mains fed.

 

[sparky]

If the original stop tap is leaking how is putting another stop tap above it going to help?

 

[doppiooo]

Sparky I can fix the leak with some ptfe around the spindle but I am not comfortable at having go down the road to turn off the water especially in an emergency.
I was wondering if someone had put this pressure valve in because the stopcock is stuck open and so to reduce the pressure was easier than replacing the tap.

 

[Plamber]

i dont think they would have put in the pressure reducibg valve due to the stopcock not working, they would have replaced it instead.

Could you not put a new stopcock in place of the old one? seeing as you will be putting the water off outside anyway?

 

[Blake]

Surely it is easier to just turn the water off in the street, remove the broken tap and fit a new one??

 

[doppiooo]

The old stopcock is fitted to a black plastic pipe about 3/4 inch od and nowhere can I find anyone to confirm which stopcock I would need or indeed the size of fitting I would need to connect to anything in copper. On the surface it would seem a replacement 22mm or 20mm stopcock would be right but apparently its not that simple as pipes of this type and size vary a lot. The house is about 30 years old and I am trying to avoid removing the old tap.

Sorry, In my previous post I never made it clear that the black plastic pipe I spoke of is the supply pipe from the Water Authorities meter to the stopcock.

 

[Plamber]

could you take a photo? maybe some guys on here could name it for you or you could maybe show a photo of it to a plumbing suppler who may have an exact one to give you.

having obviously not seen the job or anything i wouldnt reccomend removing your pressure reducing valve.

 

[doppiooo]

I have a photo and have tried uploading but I get a failed message each time. I went to 'insert image' and also 'manage attachments' to try and send a picture but failed each time, the picture is too big or something. I dont know if the way I went about it was the right way to send pictures. If anyone can put me right I would appreciate.

 

[doppiooo]

This is the valve.

 

[doppiooo]

Here is the old stopcock which has a drain on its side.

 

[doppiooo]

This is the final pic showing the layout of this plumbing. The black plastic looking pipe into the stopcock is the water supply ( it could be alkathene) and the black pipe attached to the copper pipe is 17mm poly-york rigid plastic. This stuff is also an headache. As you can see the grey valve thing is taking a load of space. I think I have got the hang of the picture posting, I hope😀