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cotlands
Junior Member
Joined: 08 Jul 2008
Posts: 6
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 Posted: Tue Jul 08, 2008 4:57 pm Post subject: Mains supply into a WC |
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| New to the website and my first post so please excuse me if my question is basic. My father in law would like his loft water tank disabled and taken out of use. It currently feeds the WC cistern and cold taps to the bath and wash hand basin in the toilet. My plan is to tap into the rising mains supply and divert to the existing pipework from the tank. Someone has mentioned that there may be a problem with the mains supply pressure going into the WC cistern. Will that be a problem and if so, is there a solution to restrict the water pressure into the WC cistern? Any advice will be gratefully received - thanks in advance.
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thescruff
Senior Member
Joined: 10 Mar 2008
Posts: 5701
Location: Bath
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| Posted: Tue Jul 08, 2008 5:06 pm Post subject: |
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You will need a high pressure ball valve.
What are you doing about the hot water, and the boiler.
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cotlands
Junior Member
Joined: 08 Jul 2008
Posts: 6
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| Posted: Tue Jul 08, 2008 6:59 pm Post subject: Mains Supply to a WC |
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| Thanks Scruff, I just knew you would be the first to come up with an answer. The hot water is being provided through a combi boiler which was fitted as part of a programme to provide CH to Senior Citizens leaving the loft tank serving only the cold supply to the bathroom. Where should I locate the high pressure ball valve, just below the entry into the cistern? Thanks for your help with this.
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thescruff
Senior Member
Joined: 10 Mar 2008
Posts: 5701
Location: Bath
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| Posted: Tue Jul 08, 2008 7:04 pm Post subject: |
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| Quote: |
| Where should I locate the high pressure ball valve, just below the entry into the cistern? |
No inside it 
You need to change the float valve in the cistern unless you can source a high pressure nozzle.
Post a pic of the inside of the cistern
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cotlands
Junior Member
Joined: 08 Jul 2008
Posts: 6
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| Posted: Tue Jul 08, 2008 7:33 pm Post subject: Mains Supply into WC |
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| Oops, sorry if that sounded like a real amateur - that's what I am! I'll post a pic tomorrow once I've visited my FinL's - we're both very grateful for your help.
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cotlands
Junior Member
Joined: 08 Jul 2008
Posts: 6
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thescruff
Senior Member
Joined: 10 Mar 2008
Posts: 5701
Location: Bath
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| Posted: Wed Jul 09, 2008 5:18 pm Post subject: |
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Super 
You see that big nut on the right, if you turn the water off and undo it, clockwise as you look at it, inside there's a plastic nozzle with an hole in the middle, if the hole is about 4mm then its high pressure if 6-8mm its low pressure and you need to change it or the whole valve.
To do that you drain the water out of the cistern and unscrew it from below
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cotlands
Junior Member
Joined: 08 Jul 2008
Posts: 6
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| Posted: Wed Jul 09, 2008 8:27 pm Post subject: Mains Supply to WC |
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| Thanks Scruff, I'll have a look tomorrow and let you know how I get on.
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cotlands
Junior Member
Joined: 08 Jul 2008
Posts: 6
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| Posted: Mon Jul 21, 2008 2:07 pm Post subject: Mains Supply into a WC |
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| Scruff - just to let you know that the local plumber recommended by the council who "administer" small jobs for Senior Citizens done the job including all parts (valve, T piece, end caps etc.) for £75 -Father in Law happy with work and price so everyone's a winner. Thanks for your advice - tried to register thanks using the tab on the website but the option keeps disappearing.
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Stoday
Electricity economics consultant
Joined: 20 Jan 2006
Posts: 3228
Location: Sitting on the Bog
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| Posted: Mon Jul 21, 2008 6:51 pm Post subject: |
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Hey - that's a bog standard cistern. Ho! Ho!
Sorry I can't help it...
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