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The Question Asker
 
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Default No pressure in Hot water tap!!! Help

Hi,
Just installed a new kitchen in a friends house but after fitting the new
sink in the hot water tap has been reduced to a dribble. Her hot water
system is as follows (I will try to describe it as best as possible...)

There is a cold water feeder tank in the airing cupboard feeding a ho****er
tank with immersion heater in. Out of the feeder tank is two pipes one
feeding the cold water in the bathroom and the other feeding the hw tank..
From the ho****er tank is a pipe controlled by a gate tap, this feeds the
bathroom ho****er both sink and bath and the bath (Which has always had low
pressure) then this same pipe feed the kitchen hw tap which use to have good
pressure (Well better than now). I have checked that there are no kinks in
the flexible pipe and that there are no blockages in the tap itself. So
what's wrong......... Doe the system need bleeding as I emptied the whole
system, I have also replaced both Gate Valves (The one coming out of the
cold water tank and the one coming out of the hw tank)

If it need bleeding could someone give me some advice on how to do it.

Cheers and hope someone can help
Oli


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The Question Asker
 
Posts: n/a
Default No pressure in Hot water tap!!! Help

I have replaced ith a new mixer tap so its is a bit hard to connect a hose
pipe between them..
"The Question Asker" wrote in message
...
Hi,
Just installed a new kitchen in a friends house but after fitting the new
sink in the hot water tap has been reduced to a dribble. Her hot water
system is as follows (I will try to describe it as best as possible...)

There is a cold water feeder tank in the airing cupboard feeding a

ho****er
tank with immersion heater in. Out of the feeder tank is two pipes one
feeding the cold water in the bathroom and the other feeding the hw tank..
From the ho****er tank is a pipe controlled by a gate tap, this feeds the
bathroom ho****er both sink and bath and the bath (Which has always had

low
pressure) then this same pipe feed the kitchen hw tap which use to have

good
pressure (Well better than now). I have checked that there are no kinks in
the flexible pipe and that there are no blockages in the tap itself. So
what's wrong......... Doe the system need bleeding as I emptied the whole
system, I have also replaced both Gate Valves (The one coming out of the
cold water tank and the one coming out of the hw tank)

If it need bleeding could someone give me some advice on how to do it.

Cheers and hope someone can help
Oli




  #3   Report Post  
BigWallop
 
Posts: n/a
Default No pressure in Hot water tap!!! Help


"The Question Asker" wrote in message
...
I have replaced ith a new mixer tap so its is a bit hard to connect a hose
pipe between them..



Try blowing back up the spout with the tap full on to see if it clears. One
thing I'd ask you to check to see is that no debris has fallen into the pipe
work when it lay open or that any PTFE Tape you've applied to the joints
hasn't pulled over the ends of the fittings or the pipes.


  #4   Report Post  
The Question Asker
 
Posts: n/a
Default No pressure in Hot water tap!!! Help

the cold water tap works fine, tho?? theres a outlet tap at the bottom of th
ehw tank and one by the main coldwater inlet pipe so could i connect the two
with a piece of hose then turn both on then turn on the taps would this
clear any blockage??
"StevieBoy" no@email wrote in message
...
On Mon, 21 Jul 2003 05:46:57 +0100, "The Question Asker"
wrote:

I have replaced ith a new mixer tap so its is a bit hard to connect a

hose
pipe between them..
"The Question Asker" wrote in message
...


Some mixer taps are designed for high-pressure water only. That may
be where your problem is ... check the packaging it came in!

Steve



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StevieBoy
 
Posts: n/a
Default No pressure in Hot water tap!!! Help

On Mon, 21 Jul 2003 12:20:58 +0100, "The Question Asker"
wrote:

the cold water tap works fine, tho?? theres a outlet tap at the bottom of th
ehw tank and one by the main coldwater inlet pipe so could i connect the two
with a piece of hose then turn both on then turn on the taps would this
clear any blockage??


As long as you have someone watching the level cold water storage tank
to ensure that water doesn't get pushed through the hot water cylinder
making the cold water storage tank overflow ... but I don't think you
want to try this yet.

The new Cold Tap (which works okay) may be fed straight from the
mains, and therefore is under mains pressure? The 'Hot' part of the
tap may be expecting the same pressure water and or may have an
insert/flow reducing value which you remove in low-pressure
installations.

First plan of action is to ring the manufacturer of the new tap to see
if they have any advice.

Perhaps the new tap is faulty?

Once that avenue has been exhausted I'd try and reconnect the old tap
to see if the old one works ok.

Steve


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John Armstrong
 
Posts: n/a
Default No pressure in Hot water tap!!! Help

On Mon, 21 Jul 2003 05:46:57 +0100, "The Question Asker"
wrote:

I have replaced ith a new mixer tap so its is a bit hard to connect a hose
pipe between them..


Depending on the innards of the mixer tap, the water could be mixed at
the spout outlet or in the body.
If it is mixed in the body, putting your thumb over the end and
turning both on will have the same effect.
If it as mixed at the outlet, you might be able to clamp a short piece
of blocked off pipe or similar over the outlet. This will also link
the hot and cold.


--
John
  #7   Report Post  
The Question Asker
 
Posts: n/a
Default No pressure in Hot water tap!!! Help

I had to drain the system cos the gate value weren't working ( so had to
turn off at mains and drain...then replace valve
"Ed Sirett" wrote in message
...
The Question Asker wrote:

Hi,
Just installed a new kitchen in a friends house but after fitting the

new
sink in the hot water tap has been reduced to a dribble. Her hot water
system is as follows (I will try to describe it as best as possible...)

There is a cold water feeder tank in the airing cupboard feeding a

ho****er
tank with immersion heater in. Out of the feeder tank is two pipes one
feeding the cold water in the bathroom and the other feeding the hw

tank..
From the ho****er tank is a pipe controlled by a gate tap, this feeds

the
bathroom ho****er both sink and bath and the bath (Which has always had

low
pressure) then this same pipe feed the kitchen hw tap which use to have

good
pressure (Well better than now). I have checked that there are no kinks

in
the flexible pipe and that there are no blockages in the tap itself. So
what's wrong......... Doe the system need bleeding as I emptied the

whole
system, I have also replaced both Gate Valves (The one coming out of the
cold water tank and the one coming out of the hw tank)

If it need bleeding could someone give me some advice on how to do it.

If there is no HW from the bath tap also then you have an air lock (why
did you have to drain the tank the gate valve sould have at least
stemmed the flow enough to work on the kitchen pipes?).
If you have air lock and the the bath cold is working then simply
connect the bath cold and hot together (easy if you have a mixer - just
put your hand over the outle) and turn both on. Wait 30seconds (maybe
more) and then release and turn of the cold the hot should splutter into
normal operation.




--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html



  #8   Report Post  
Ed Sirett
 
Posts: n/a
Default No pressure in Hot water tap!!! Help

The Question Asker wrote:

Hi,
Just installed a new kitchen in a friends house but after fitting the new
sink in the hot water tap has been reduced to a dribble. Her hot water
system is as follows (I will try to describe it as best as possible...)

There is a cold water feeder tank in the airing cupboard feeding a ho****er
tank with immersion heater in. Out of the feeder tank is two pipes one
feeding the cold water in the bathroom and the other feeding the hw tank..
From the ho****er tank is a pipe controlled by a gate tap, this feeds the
bathroom ho****er both sink and bath and the bath (Which has always had low
pressure) then this same pipe feed the kitchen hw tap which use to have good
pressure (Well better than now). I have checked that there are no kinks in
the flexible pipe and that there are no blockages in the tap itself. So
what's wrong......... Doe the system need bleeding as I emptied the whole
system, I have also replaced both Gate Valves (The one coming out of the
cold water tank and the one coming out of the hw tank)

If it need bleeding could someone give me some advice on how to do it.

If there is no HW from the bath tap also then you have an air lock (why
did you have to drain the tank the gate valve sould have at least
stemmed the flow enough to work on the kitchen pipes?).
If you have air lock and the the bath cold is working then simply
connect the bath cold and hot together (easy if you have a mixer - just
put your hand over the outle) and turn both on. Wait 30seconds (maybe
more) and then release and turn of the cold the hot should splutter into
normal operation.




--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
  #9   Report Post  
Owain
 
Posts: n/a
Default No pressure in Hot water tap!!! Help

"John Armstrong" wrote
| I have replaced ith a new mixer tap so its is a bit hard to connect
| a hose pipe between them..
| Depending on the innards of the mixer tap, the water could be mixed at
| the spout outlet or in the body.

As it's a kitchen tap, the water should only be mixed at the outlet and
usually these taps have concentric spouts, in which case the hot should be
central and the cold surrounding. This helps stop the spout getting hot to
touch when running a lot of hot water.

Owain



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