Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.

Grumps Wrote in message:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.


Depress buttons with fingers & rotate whole button assembly.
--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

On 28/01/2018 09:50, jim wrote:
Grumps Wrote in message:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.


Depress buttons with fingers & rotate whole button
assembly.

Great. Thanks Jim.

The cistern must be at overflowing level. A bit of a fluctuation in th
epressure is allowing the ball valve to pass a bit of water that is then
causing an overflow into the bowl - assuming it is an inegral overflow.

Try reducing the water level to about !cm below the overflow.

DerbyBorn Wrote in message:
The cistern must be at overflowing level. A bit of a fluctuation in th
epressure is allowing the ball valve to pass a bit of water that is then
causing an overflow into the bowl - assuming it is an inegral overflow.

Try reducing the water level to about !cm below the overflow.


Worth a look but I can't think why that doesn't happen when sink
or bath taps operated?

--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

On 28/01/2018 12:43, jim wrote:


Worth a look but I can't think why that doesn't happen when sink
or bath taps operated?


Shower and toilet fed from the rising main, sink and bath taps fed froma
tank in the loft????

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

jim k wrote:

DerbyBorn Wrote in message:
The cistern must be at overflowing level. A bit of a fluctuation in th
epressure is allowing the ball valve to pass a bit of water that is then
causing an overflow into the bowl - assuming it is an inegral overflow.

Try reducing the water level to about !cm below the overflow.


Worth a look but I can't think why that doesn't happen when sink
or bath taps operated?

Of course it shouldn't happen at all on dropping the pressure if the
ball valve is working properly. My theory is that some imperfection or
dirt on the seating allows it to leak when the pressure falls just below
the resting mains pressure (presumably regulated at the stree stopcock)
allowing part of the diaphragm to lift slightly. But when the pressure
falls further the shape changes further and it seals again at another
part of the diaphragm radius.. If this is true, there will be a rate of
carefully adjusted flow from the tap which will duplicate the effect of
the shower.
So, a testable hypothesis!

--

Roger Hayter

give in the pipes if they are flexible?
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"jim" k wrote in message
o.uk...
DerbyBorn Wrote in message:
The cistern must be at overflowing level. A bit of a fluctuation in th
epressure is allowing the ball valve to pass a bit of water that is then
causing an overflow into the bowl - assuming it is an inegral overflow.

Try reducing the water level to about !cm below the overflow.


Worth a look but I can't think why that doesn't happen when sink
or bath taps operated?

--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

On Sun, 28 Jan 2018 09:50:52 +0000 (GMT+00:00), jim k wrote:

Grumps Wrote in message:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.


Depress buttons with fingers & rotate whole button assembly.
Or lift the buttons out and undo the screw that will be revealed. If
you don't have any fingernails to get the buttons out use sellotape or
similar.

On 28/01/2018 09:50, jim wrote:
Grumps Wrote in message:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.


Depress buttons with fingers & rotate whole button
assembly.

Or sometimes just unscrew the bezel while keeping the buttons still...

(some buttons have snap to length posts on the back that push down on
activators on the flush - others are connected via pneumatic tubes to
the flush mechanism - the latter kind don't like being "wound up" as such)


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

John Rumm Wrote in message:
On 28/01/2018 09:50, jim wrote:
Grumps Wrote in message:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.


Depress buttons with fingers & rotate whole button
assembly.

Or sometimes just unscrew the bezel while keeping the buttons still...

(some buttons have snap to length posts on the back that push down on
activators on the flush - others are connected via pneumatic tubes to
the flush mechanism - the latter kind don't like being "wound up" as such)


So you deal with those how? Jfi...
--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

John Rumm Wrote in message:
On 28/01/2018 09:50, jim wrote:
Grumps Wrote in message:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.


Depress buttons with fingers & rotate whole button
assembly.

Or sometimes just unscrew the bezel while keeping the buttons still...

(some buttons have snap to length posts on the back that push down on
activators on the flush - others are connected via pneumatic tubes to
the flush mechanism - the latter kind don't like being "wound up" as such)


So you deal with those how? Jfi...

I thought my Fluidmaster's were capilliary, but they turned out to be
Bowden cables.
--

Graham.
%Profound_observation%

On 28/01/2018 20:19, jim wrote:
John Rumm Wrote in message:
On 28/01/2018 09:50, jim wrote:
Grumps Wrote in message:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.


Depress buttons with fingers & rotate whole button
assembly.

Or sometimes just unscrew the bezel while keeping the buttons still...

(some buttons have snap to length posts on the back that push down on
activators on the flush - others are connected via pneumatic tubes to
the flush mechanism - the latter kind don't like being "wound up" as such)


So you deal with those how? Jfi...

The bezel unscrews, but without rotating the whole assembly.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

this briefly using the cold water to the shower head. Running the
sink or bath taps does not cause this to happen.


Possibly the shower causes almost a "water hammer" effect but the taps
don't.

Sounds a bit like some kind of backwards flow going on due to the mixer, but
I've never had a system with the tank for hot at mains pressure myself.
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"jim" k wrote in message
...
Grumps Wrote in message:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.


Depress buttons with fingers & rotate whole button assembly.
--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

On 28/01/2018 09:43, Grumps wrote:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.

So, I've managed to get the lid off the cistern just by lifting the two
plungers and unscrewing the large plastic screw that is revealed.
When the shower is in operation, it is obvious that the toilet fill
valve (like this:
http://www.flushking.co.uk/adjustabl...ve-brass-shank) admits
water until it reaches the internal overflow.
The fill valve operates normally when the toilet is flushed.
I'm still at a loss to explain fully what is happening, but does this
type of fill valve rely on incoming water pressure to hold it closed?
That, as I think others have mentioned, might explain it.
Solution: replace fill valve?

Grumps wrote:

On 28/01/2018 09:43, Grumps wrote:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.

So, I've managed to get the lid off the cistern just by lifting the two
plungers and unscrewing the large plastic screw that is revealed.
When the shower is in operation, it is obvious that the toilet fill
valve (like this:
http://www.flushking.co.uk/adjustabl...ve-brass-shank) admits
water until it reaches the internal overflow.
The fill valve operates normally when the toilet is flushed.
I'm still at a loss to explain fully what is happening, but does this
type of fill valve rely on incoming water pressure to hold it closed?
That, as I think others have mentioned, might explain it.
Solution: replace fill valve?

It shouldn't leak at any pressure. But as someone said a very small
leak is less likely to be a problem if you adjust the float so the water
level is at least a cm (or 1/2" in old money) below the overflow when
the valve closes. If it does leak at any pressure at all then it might
be worth replacing. It may be possible to replace the washer/diaphragm
but it the valve is such a mass of fiddly little plastic bits that it is
probably better to replace the whole lot.

--

Roger Hayter

On 04/02/2018 13:58, Roger Hayter wrote:
Grumps wrote:

On 28/01/2018 09:43, Grumps wrote:
Hi all.
This sounds a weird one to me. In the bathroom of my daughter's flat
there is a toilet, sink, and bath. The bath has mixer taps and a
flexible hose to a shower head. Cold water is mains fed. Hot water is
from a water tank at mains pressure.
Everything works, but...
When you turn the shower head on, after several seconds water starts
dripping/running into the toilet bowl. I've only tested this briefly
using the cold water to the shower head. Running the sink or bath taps
does not cause this to happen.
What's the cause?

The toilet cistern is ceramic with a dual push button thing on the top.
If I try to lift the cistern lid, I am stopped by the mechanism attached
to these buttons. How do I remove the lid?

Ta.

So, I've managed to get the lid off the cistern just by lifting the two
plungers and unscrewing the large plastic screw that is revealed.
When the shower is in operation, it is obvious that the toilet fill
valve (like this:
http://www.flushking.co.uk/adjustabl...ve-brass-shank) admits
water until it reaches the internal overflow.
The fill valve operates normally when the toilet is flushed.
I'm still at a loss to explain fully what is happening, but does this
type of fill valve rely on incoming water pressure to hold it closed?
That, as I think others have mentioned, might explain it.
Solution: replace fill valve?

It shouldn't leak at any pressure. But as someone said a very small
leak is less likely to be a problem if you adjust the float so the water
level is at least a cm (or 1/2" in old money) below the overflow when
the valve closes. If it does leak at any pressure at all then it might
be worth replacing. It may be possible to replace the washer/diaphragm
but it the valve is such a mass of fiddly little plastic bits that it is
probably better to replace the whole lot.

If its like the one in the link, then its probably worth popping the top
off and cleaning any crud out from around the diaphragm.

With many like that, if you turn off the water to the valve. Fully lift
the fill arm, then push down on the cap and give it a firm 1/8th turn
anti-clockwise, it will unclip from its bayonet like fitting. You can
then take the pin and rubber bit out, and flush some water through the
valve stem to clear anything trapped under it.

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/