Anyone please explain why these one way service valves have been
fitted like this?

http://tinypic.com/r/mt86dk/5

haz

hazadous temperature wrote:
Anyone please explain why these one way service valves have been
fitted like this?

http://tinypic.com/r/mt86dk/5

It looks like a retrofit of double check valves to comply with the water
regulations. It is not the neatest way it could have been done.

Colin Bignell

On Mon, 17 May 2010 14:56:06 -0700 (PDT), hazadous temperature wrote:

Anyone please explain why these one way service valves have been
fitted like this?

http://tinypic.com/r/mt86dk/5

Well the vertical one goes in the only bit of straight pipe.

The horizontal one is like that cause there wouldn't be enough space
to get the alignment right with elbows etc if it was vertical.


--
Cheers
Dave.

On 17 May, 23:34, "Nightjar \"cpb\"@" "insertmysurnamehere wrote:
hazadous temperature wrote:
Anyone please explain why these one way service valves have been
fitted like this?

http://tinypic.com/r/mt86dk/5

It looks like a retrofit of double check valves to comply with the water
regulations. It is not the neatest way it could have been done.

Colin Bignell

The job could have been done a lot neater.

haz

On 17 May, 23:55, "Dave Liquorice"
wrote:
On Mon, 17 May 2010 14:56:06 -0700 (PDT), hazadous temperature wrote:
Anyone please explain why these one way service valves have been
fitted like this?

http://tinypic.com/r/mt86dk/5

Well the vertical one goes in the only bit of straight pipe.

The horizontal one is like that cause there wouldn't be enough space
to get the alignment right with elbows etc if it was vertical.

--
Cheers
Dave.


On the other photo (I've just uploaded gives a wider view) you can
just see the
insulation at the very top of the image with three pipes coming
downward,
The first pipe on the left is a cold feed and the other two are hot.

The chrome pipe leads to a hose connection (not show) but to me there
is enough
room to fit the valves at the top of the vertical pipes, seems a
strange
way for a professional outfit to do all the dogs-leg abortion when
they could have
fitted the valve at the top albeit two instead of one, but it would be
neater,
as it is the dogs-leg is leaking at the top right elbow.

This is in a Morrisons supermarket and the sink area is in the main
staff sluice room.

haz

On 18 May, 08:56, hazadous temperature
wrote:
On 17 May, 23:34, "Nightjar \"cpb\"@" "insertmysurnamehere wrote:

hazadous temperature wrote:
Anyone please explain why these one way service valves have been
fitted like this?

http://tinypic.com/r/mt86dk/5

It looks like a retrofit of double check valves to comply with the water
regulations. It is not the neatest way it could have been done.

Colin Bignell

The job could have been done a lot neater.

haz

Wider image here;
http://tinypic.com/r/ammg7/5

haz

On 17 May, 22:56, hazadous temperature
wrote:
Anyone please explain why these one way service valves have been
fitted like this?

http://tinypic.com/r/mt86dk/5

haz

One is apparently in the cold feed, the other is in the hot and I
would guess the two connected vertical pipes on the right are at the
end of a hot service secondary circulating loop. The number of holes
in the tile behind the hot tap would suggest some pretty poor wall
conditions behind it which may be why the convoluted route has been
introduced. If the wall is sound then it shows a bodging installer may
be involved.

On 18 May, 10:09, cynic wrote:
On 17 May, 22:56, hazadous temperature

wrote:
Anyone please explain why these one way service valves have been
fitted like this?

http://tinypic.com/r/mt86dk/5

haz

One is apparently in the cold feed, the other is in the hot and I
would guess the two connected vertical pipes on the right are at the
end of a hot service secondary circulating loop. The number of holes
in the tile behind the hot tap would suggest some pretty poor wall
conditions behind it which may be why the convoluted route has been
introduced. If the wall is sound then it shows a bodging installer may
be involved.

The water may indeed recirculate as there are two hot pipes on the
right
which are joined together just where the leaking elbow is.

If it is a recirculated loop then that would explain the method used
to fit the one way valve.

The holes in the tiles are where older taps have been previously
fitted,
the tiles*are positioned over a solid breeze block wall.

haz

On 18 May, 13:09, wrote:
On 18 May, *
* * *hazadous temperature wrote:





On the other photo (I've just uploaded gives a wider view) you can
just see the
*insulation at the very top of the image with three pipes coming
downward,
The first pipe on the left is a cold feed and the other two are hot.

The chrome pipe leads to a hose connection (not show) but to me there
is enough
*room to fit the valves at the top of the vertical pipes, seems a
strange
way for a professional outfit to do all the dogs-leg abortion when
they could have
fitted the valve at the top albeit two instead of one, but it would be
neater,
as it is the dogs-leg is leaking at the top right elbow.

This is in a Morrisons supermarket and the sink area is in the main
staff sluice room.

Are the two 'hot' pipes part of a circulation system to keep the pipes hot?

--
* B Thumbs
* Change lycos to yahoo to reply

I think they are recirculated, as the hot feed pipes are joined
together.


haz

On 18 May, 13:09, wrote:
On 18 May, *
* * *hazadous temperature wrote:





On the other photo (I've just uploaded gives a wider view) you can
just see the
*insulation at the very top of the image with three pipes coming
downward,
The first pipe on the left is a cold feed and the other two are hot.

The chrome pipe leads to a hose connection (not show) but to me there
is enough
*room to fit the valves at the top of the vertical pipes, seems a
strange
way for a professional outfit to do all the dogs-leg abortion when
they could have
fitted the valve at the top albeit two instead of one, but it would be
neater,
as it is the dogs-leg is leaking at the top right elbow.

This is in a Morrisons supermarket and the sink area is in the main
staff sluice room.

Are the two 'hot' pipes part of a circulation system to keep the pipes hot?

--
* B Thumbs
* Change lycos to yahoo to reply

There is an arrow on the insulation (not shown in the photo) showing
direction of water flow (up and down) but why
would one way valves need to be fitted in the first place?

haz

hazadous temperature wrote:
On 18 May, 13:09, wrote:
On 18 May,
hazadous temperature wrote:





On the other photo (I've just uploaded gives a wider view) you can
just see the
insulation at the very top of the image with three pipes coming
downward,
The first pipe on the left is a cold feed and the other two are hot.
The chrome pipe leads to a hose connection (not show) but to me there
is enough
room to fit the valves at the top of the vertical pipes, seems a
strange
way for a professional outfit to do all the dogs-leg abortion when
they could have
fitted the valve at the top albeit two instead of one, but it would be
neater,
as it is the dogs-leg is leaking at the top right elbow.
This is in a Morrisons supermarket and the sink area is in the main
staff sluice room.
Are the two 'hot' pipes part of a circulation system to keep the pipes hot?

--
B Thumbs
Change lycos to yahoo to reply

There is an arrow on the insulation (not shown in the photo) showing
direction of water flow (up and down) but why
would one way valves need to be fitted in the first place?

Because they are required by the Water Supply (Water Fittings)
Regulations 1999. to prevent backflow.

http://www.plumbingpages.com/feature...rviewGrant.cfm

Colin Bignell