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Post by rocketmanbkk on Jun 28, 2018 18:26:54 GMT
The set up gives balanced hot & cold
Does the kitchen still come off of the mains or does the main go straight to the combi valve?
How about toilets?
Cheers all
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Post by Deleted on Jun 28, 2018 18:38:30 GMT
The kitchen tap is usually unbalanced rocky and the rest of the system is balanced  |
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Post by rocketmanbkk on Jun 28, 2018 18:40:38 GMT
The kitchen tap is usually unbalanced rocky and the rest of the system is balanced How about toilets PB? Does that matter? Or is it just the ways it’s done? |
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Post by Deleted on Jun 28, 2018 18:43:09 GMT
Toilets will all be on mains rocky if you are converting over a vented system to unvented you may have to upgrade the fill valves if they can't cope. |
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Post by rocketmanbkk on Jun 28, 2018 18:46:31 GMT
Cheers
It’s as I thought
Someone said to me he puts toilets off the combi valve. I thought that was strange. He also said the kitchen too.
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Post by Deleted on Jun 28, 2018 18:50:02 GMT
Cheers It’s as I thought Someone said to me he puts toilets off the combi valve. I thought that was strange. He also said the kitchen too. Normally the main will rise near or under the sink and will feed the kitchen tap before it rises further up into the airing cupboard where it then gets balanced for the rest of the house, I can't see why they would take a balanced feed back to the kitchen tap. |
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Post by rocketmanbkk on Jun 28, 2018 18:52:50 GMT
Cheers It’s as I thought Someone said to me he puts toilets off the combi valve. I thought that was strange. He also said the kitchen too. Normally the main will rise near or under the sink and will feed the kitchen tap before it rises further up into the airing cupboard where it then gets balanced for the rest of the house, I can't see why they would take a balanced feed back to the kitchen tap. I agree. Also if that combi valve fails does it stop the flow of cold? I know in my flat the hot stopped but kitchen cold was mains as normal. Surely if the cold flow stops you must have one off the mains I.e kitchen |
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Post by Deleted on Jun 28, 2018 18:56:29 GMT
The group valve normally fails on the prv letting too much pressure past, you can get reduced flow if the strainer is blocked. |
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Post by dickpuller on Jun 29, 2018 16:27:30 GMT
For Unvented I’d normally fit a 3Bar pressure reducing valve on the incoming main. Then the whole house is at the same pressure.
OK there’s another valve on the cylinder, but it’s just easier.
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