In the yard of my flat are two what I take to be air admittance valves
for the drain. Very close to this is a roof level vent pipe for the
soil pipe. What are these two ground level vents (Side by Side) doing
and can they be removed. I ask this as one is damage and they are in
the way?
Forgot to say there are no man holes to see what is going on!

I think a photo might be useful.
Simon.

On 11/08/2011 11:39, wrote:
In the yard of my flat are two what I take to be air admittance valves
for the drain. Very close to this is a roof level vent pipe for the
soil pipe. What are these two ground level vents (Side by Side) doing
and can they be removed. I ask this as one is damage and they are in
the way?
Forgot to say there are no man holes to see what is going on!


Very unlikely to be AAVs at the *bottom* of a stack - more likely
rodding points. What shape are they? As someone else has said, any
chance of a photo?
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

On Aug 11, 4:49*pm, Roger Mills wrote:
On 11/08/2011 11:39, wrote:

In the yard of my flat are two what I take to be air admittance valves
for the drain. Very close to this is a roof level vent pipe for the
soil pipe. What are these two ground level vents (Side by Side) doing
and can they be removed. I ask this as one is damage and they are in
the way?
Forgot to say there are no man holes to see what is going on!

Very unlikely to be AAVs at the *bottom* of a stack - more likely
rodding points. What shape are they? As someone else has said, any
chance of a photo?
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

Yes, perhaps rodding points as they are at the back of the house. Not
sure how to do a photo though?

"comp.zrch.embedded" wrote in message
...
On Aug 11, 4:49 pm, Roger Mills wrote:
On 11/08/2011 11:39, wrote:

In the yard of my flat are two what I take to be air admittance
valves
for the drain. Very close to this is a roof level vent pipe for
the
soil pipe. What are these two ground level vents (Side by Side)
doing
and can they be removed. I ask this as one is damage and they are
in
the way?
Forgot to say there are no man holes to see what is going on!

Very unlikely to be AAVs at the *bottom* of a stack - more likely
rodding points. What shape are they? As someone else has said, any
chance of a photo?
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is
seldom
checked.

Yes, perhaps rodding points as they are at the back of the house. Not
sure how to do a photo though?

Upload it to a photo hosting site (Flicker , Photobucket etc) and post
a link here to where it is. Compressed link from Tinyurl also would be
a good idea as long links often get split across lines in newsposts

AWEM

In article ,
Roger Mills wrote:
Very unlikely to be AAVs at the *bottom* of a stack - more likely
rodding points. What shape are they? As someone else has said, any
chance of a photo?

A rodding point usually has a screw on cover which seals it. A ventilator,
a grill.

--
*If tennis elbow is painful, imagine suffering with tennis balls *

Dave Plowman London SW
To e-mail, change noise into sound.