So I needed to replace the flush valve in a toliet cistern. No problem think I: I'll just isolate it at the conveniently located service valve and job'll be done in 10 minutes. Except the service valve (which probably hasn't been used in 5+ years) wouldn't fully turn so I ended up having to switch the water off at the mains feed, rather defeating the point of the service valve (which I've also now replaced, obviously!).

 

Just wondering with a radial manifold system which seems popular here, there are some beautiful examples of the Hep2O system with isolators on the manifold. Are these valves any more reliable than standard service valves in the long term? 

 

Do any/all isolator valves need regular maintenance/use. Should I be going round once a year and operating every valve in the house - do "normal" people do that?

23 minutes ago, Dunc said:

So I needed to replace the flush valve in a toliet cistern. No problem think I: I'll just isolate it at the conveniently located service valve and job'll be done in 10 minutes. Except the service valve (which probably hasn't been used in 5+ years) wouldn't fully turn so I ended up having to switch the water off at the mains feed, rather defeating the point of the service valve (which I've also now replaced, obviously!).

 

Just wondering with a radial manifold system which seems popular here, there are some beautiful examples of the Hep2O system with isolators on the manifold. Are these valves any more reliable than standard service valves in the long term? 

 

Do any/all isolator valves need regular maintenance/use. Should I be going round once a year and operating every valve in the house - do "normal" people do that?

I always use Hepworth. These isolators ( the manifold ones ) are great, and never need servicing. 
You cannot use them to attenuate / restrict flow by opening them partially. It’s either on or off though, otherwise they’re noisy. 
When open 100% they’re virtually silent.

 

 

Edited April 25, 20233 yr by Nickfromwales
Specsavers here I come!