Overflowing urinal cistern

[Dan-HybridHeat]

Been asked to look at a urinal cistern that is constantly dripping - never dealt with them before. As far as I was aware they were on timed electronic devices that released every so often.

I've come across this which is constantly passing and causing the urinals to drip constantly, any ideas what it is/how it works? At some points the cistern still does a full flush as it should.

http://i.*********/jrsJfSd.jpg

 

[stevetheplumber]

change the syphon its probably pin holed

 

[ShaunCorbs]

have a look at cistermiser

and tbh thats normally and very doubt full there a solenoid inline and while your there replace the auto flush theres two types (different heights)

 

[Dan-HybridHeat]

No cistermiser, literally a CW pipe coming through the loft and into that valve. Will change the siphon, any idea what that valve's called?

 

[townfanjon]

The valve on the end is a pet cock, either put a new one on or just put an isolation valve and drip the water into the cistern , time it for a flush every 15/20 mins

 

[Dan-HybridHeat]

The valve on the end is a pet cock, either put a new one on or just put an isolation valve and drip the water into the cistern , time it for a flush every 15/20 mins

Much appreciated, thanks

 

[townfanjon]

Dan, i doubt if theres anything wrong with the syphon .

 

[ShaunCorbs]

Dan, i doubt if theres anything wrong with the syphon .

if it keeps dripping there is

 

[townfanjon]

No I think the cistern is permanently filling

 

[ShaunCorbs]

No I think the cistern is permanently filling

yea but it shouldnt drip while filling maybe be wrong but thats how i read it