- posted
7 years ago
Blue water in Brum a bad sign ...
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- posted
7 years ago
The water in your toilet cistern is not ideal for drinking, regardless of whether it's bright blue or not.
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- posted
7 years ago
My toilet cistern is fed from a tank in the loft. So the water would need to be siphoned back into the tank then flow upwards into the inlet pipe to get into the supply . This tank runs all the water apart from the kitchen cold which is the only water you should drink.
Thought all domestic water supplies were done this way.
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- posted
7 years ago
Um, the only water *you* should drink.
Never lived in a house plumbed that way.
Tim
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- posted
7 years ago
In my last property, I purposely fed one WC cistern directly from the main, the other from the loft tank. Several reasons - not least that the tank feed ensured continued ability to flush even when mains was off (as it was several times during renewal work), and much faster filling of the main-fed one.
In current property, in common with so many now, everything is fed directly from the main.
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- posted
7 years ago
Everything consuming cold water here is plumbed to the mains, the loft tank is purely to feed the hot water, most houses I've lived in are done that way.
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7 years ago
Mea culpa there should have been a
***= I was told as a kid in there- Vote on answer
- posted
7 years ago
As per:-
(other systems are available )
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- posted
7 years ago
Not in my experience. Mostly kitchen tap mains. all other taps tank fed, or the whole lot mains fed.
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- posted
7 years ago
There's no mystery as to how it's done, just pointing out that it's far from ubiquitous.
Tim
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- posted
7 years ago
OK. I used to think it was(long time ago). Have since learned/learnt different.
What I was saying is I have always lived with this, I didn't mean to imply that this was the only way a house should be plumbed.
The diagram was merely as a way to express my ramblings in a more coherent form.
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- posted
7 years ago
In the good old days it was common for the upstairs WC to be filled off the tank.
For one it was quieter and I also thought that on occasion there were local byelaws to cover supply continuity issues.
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- posted
7 years ago
Both houses I've lived in (first built in 1986, second in 2000) had all the
*cold* taps fed from the rising main and therefore all of them were drinking water. The first house had a mini-tank joined onto the hot water cylinder which simply supplied hot water pressure; the second house had the hot water cylinder fed from the rising main - there was no header tank.My parents' house (about 1965) also has a header tank (though that one is in the loft) and that feeds hot water and cold to the bath only; all other cold taps (washbasins, kitchen sink etc) are rising main. The reason that in some houses the bath has cold water from the header tank is so both taps are at the same pressure and therefore it's easier to mix hot and cold (same pressure so same range of flow rates).
The same applies to modern pressurised hot-water systems (whether cylinder or heat-on-demand combi boiler), except this time you are mixing hot and cold at mains pressure rather than at header tank pressure.
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7 years ago
IME, ramblings should be left to their own devices and not have coherency enforced.
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7 years ago
So what is this saying exactly? Is it that Torbeck style valves are illegal when mains fed, or do they have built-in back-siphonage protection?
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7 years ago
It's saying that it is only a problem in Brum:-)
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7 years ago
Could be wrong but I though back-syphonage protection had been legislated and built into filling valves for years. There's no requirement to change old valves though. It's not hard to stop back syphonage so I don't imagine that it's a big problem from toilet cisterns.
Tim
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- posted
7 years ago
Think it may depend on area as well as age. In this house originally, everything was everything from the header tank with only the cold in the kitchen from the mains. I've kept it that way, apart from changing the bathroom basins cold to mains, as the pressure is pretty poor. But obviously with a new covered tank.
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- posted
7 years ago
It used to be very common.
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7 years ago
Is there something built into the filling loop on boilers?