New Mains Stop Cock for House

danjo-xx

Whats a reasonable price I should expect to pay for fitting a new mains stop cock. Will get the part myself.

Robbie.G

It should be a straight forward job in around the €50-€80 region

scudo2

danjo-xx wrote: »

Whats a reasonable price I should expect to pay for fitting a new mains stop cock. Will get the part myself.

Under the sink or under the footpath ?

Two totaly different type of jobs labour wise.

danjo-xx

scudo2 wrote: »

Under the sink or under the footpath ?

Two totaly different type of jobs labour wise.

under the sink

danjo-xx

Managed to free it up myself

Mains supply is in ½” copper pipe so I guess a ½” stock cock would be used if replacing existing one but...

Funny thing is the compression nuts on existing stop cock take a 32mm spanner where as a ½” compression nut only takes a 24mm Spanner.

Are there special nuts used on a mains stop cock, or should a 3/4 stock cock be used even though its only 1/2" pipe.

Robbie.G

It looks like a 3/4 332 which would be norm on mains.
Not sure looking at it if it's 1/2 reducing set on top of valve.
Best replacement is a 3/4 332 with a 3/4-1/2 310 on top of valve

danjo-xx

Robbie.G wrote: »

It looks like a 3/4 332 which would be norm on mains.
Not sure looking at it if it's 1/2 reducing set on top of valve.
Best replacement is a 3/4 332 with a 3/4-1/2 310 on top of valve

aw right I always thought 1/2" was the norm to match the 1/2" copper pipe hopefully I wont have to replace this one now its freed up. Just hope gland nut doesn't start leaking now I loosened it slightly.

Robbie.G

The mains are 1/2 inside diameter which normally used is either 1/2 normal gauge hydrodare or 1/2 heavy gauge hydrodare but both go into 3/4 fittings.

danjo-xx

I'm finding it difficult to open and close the stopcock as I don't have the strength anymore, I can do it but its too much hassle and effort.

I've read that the stop cock works like a belt n braces, ie it can stop back flow and so is better than a lever ball valve.

Is it ok to keep the stopcock and just fit a Lever ball valve over it, for ease of use and any emergencies, I can't see why not.

Dtp1979

danjo-xx wrote: »

I'm finding it difficult to open and close the stopcock as I don't have the strength anymore, I can do it but its too much hassle and effort.

I've read that the stop cock works like a belt n braces, ie it can stop back flow and so is better than a lever ball valve.

Is it ok to keep the stopcock and just fit a Lever ball valve over it, for ease of use and any emergencies, I can't see why not.

Ye a lever valve is grand. I always use them. They don't get stiff, rarely pass water when closed and can be shut off instantaneously

danjo-xx

Dtp1979 wrote: »

Ye a lever valve is grand. I always use them. They don't get stiff, rarely pass water when closed and can be shut off instantaneously

thanks Dtp, I see there is two types of lever ball valves, the standard one and a full flow, which is best.

Dtp1979

danjo-xx wrote: »

thanks Dtp, I see there is two types of lever ball valves, the standard one and a full flow, which is best.

Go with full flow

danjo-xx

Dtp1979 wrote: »

Go with full flow

Will 'full flow' valve allow me to reduce the water pressure by turning it down a bit or is it strictly on or off.

Dtp1979

danjo-xx wrote: »

Will 'full flow' valve allow me to reduce the water pressure by turning it down a bit or is it strictly on or off.

Install a pressure reducing valve after the valve if pressure is an issue

danjo-xx

A full flow valve allows the passage of same amount of water as existing pipe allows. (IF turned fully on)

A non full flow valve will allow slightly less water to flow than the pipes capacity even when fully open.

Is this right.

Dtp1979

danjo-xx wrote: »

A full flow valve allows the passage of same amount of water as existing pipe allows. (IF turned fully on)

A non full flow valve will allow slightly less water to flow than the pipes capacity even when fully open.

Is this right.

Yes your fairly right. Unless the valve severely reduces the water passage then it's not going to matter