Very low water pressure on gauge on combi-boiler

Rochdale_Guy

keystone wrote: »

Ah look 22.00, time for bed I thought. Quick look at MSE I thought. Nah don't be daft - look where it got you last night I thought.

Do I never learn? Obviously not. Mind you this thread has a sort of perverse attraction to it - heaven knows why!!

RIGHT.

The Oblong shaped object on your inlet pipe is your isolating valve. Flush the toilet, as it makes foghorn noise on refilling start to close the iso valve gently until foghorn noise disappears.

Yes?

Fixed?

Good!

Early night then.

If not you've got five minutes before I'm outa here and someone else can go through replacing the diaphragm in your float valve which is the next logical step if it doesn't work or only to the point where you shut off the water suply so that it takes ages to fill.

Cheers

Turning that did nothing except make water trickle out :eek:

Rochdale_Guy

You didn't think you'd escape that lightly did you?

keystone

OK then: When you want to do the replacement which I suggest won't be tonight:

First make sure that the water supply is fully turned off at the isolating valve. Then flush the toilet.

Second in your image of the cistern internals:



There is a knurled nut which I have marked A.

You can undo that nut (do not use the molegrips you will crush it) and it wil come away from the valve body and will take the float arm (to which the ball is attached) with it.

Inside the valve you will see a round black object - that is the diaphragm. Remove said object including the central plastic bit if it has one, take same to your friendly Toolstation lady. Say I want one of these. Make purchase. return to toilet. Insert new diaphragm the same way round as the one you took out. Replace knurled nut. Turn on water. Feel free to use.

Here is the valve in exploded view:



Yes the nut and the valve body are not the same colour as yours but that doesn't matter. Functionally and mechanically they are the same.

I may regret this but if it were me and it was my own house I'd remove that old valve entirely and replace it with a decent Fluidmaster rather than bu..ering around with it.

Cheers

Rochdale_Guy

Once again, your help has been outstanding and invaluable :beer:

I assume when I undo the knurled nut, the diaphragm washer inside will hopefully look like this one at Toolstation!

£2.56 ain't bad

http://www.toolstation.com/shop/p62694

Rochdale_Guy

paulofessex wrote: »

I too would call the council out, last thing you need over the holidays is for the boiler to pack up completely. Also if you did try to do some diy on the boiler/plumbing the council could charge you at least £50 for coming out to repair you work. You are not alone OP l have no knowledge of certain plumbing issues or even diy come to that, in my opinion there is no shame in asking for help

Who needs to call the Council out?

NOT ME!!! :j :T :j :T

Owain_Moneysaver

Rochdale_Guy wrote: »

Once again, your help has been outstanding and invaluable :beer:

I assume when I undo the knurled nut, the diaphragm washer inside will hopefully look like this one at Toolstation!

It might do.

Try not to drop it in the bottom of the cistern or you may have other difficulties later

keystone

Rochdale_Guy wrote: »

Once again, your help has been outstanding and invaluable :beer:

Ha - I haven't submitted my account yet!. :rotfl:

I assume when I undo the knurled nut, the diaphragm washer inside will hopefully look like this one at Toolstation!

Thats why I want you to take the old one with you.

Cheers

Rochdale_Guy

Why does turning that egg shaped valve to the right make water spurt out? I thought it was an isolating valve, and shuts the water off?

Don't worry, this project can wait until after Xmas now. :rotfl: :j

Rochdale_Guy

HAPPY CHRISTMAS EVERYONE AND TO ALL THOSE WHO HAVE KEPT ME FROM GOING INSANE ON HERE, WHILST LOSING THEIR OWN SANITY HELPING ME!!!

HERE'S TO A STRESS FREE 2012!

Cheers all :beer:

:j

ormus

and i was just on my way to rochdale too.
well done mate. it aint rocket science.


ps.
merry xmas to you and the family.