里bl2和bl3为什么分开_英国的水池为什么有两个水龙头?为什么英国有独立的冷热水龙头?...
如果大家看過我之前的文章,可能會有點映像,前面有提到過英國的雙水龍頭,有興趣的朋友們可以點后面的直達鏈接查看:
為什么在英國留學會掉頭發?怎么辦?
英國的自來水(冷水)可以直接喝嗎?
英國的水池,也就是洗手池,大多數地方是兩個水龍頭,如下圖,左邊是熱水,右邊是冷水:
英國雙水龍頭
??
雙水龍頭里的水,溫度可不一般,這個熱水呢,是非常的燙,燙到你尖叫,而這個冷水呢,是非常的涼,涼到你懷疑到了南極,在這里你完全可以唱一首涼涼來表達此刻的心情。所謂冰火兩重天指的應該就是英國的雙水龍頭了。可是,對于很多習慣了用一個水龍頭的人來說,這就相當麻煩了,于是,有網友就想出了,買一個混合器Retromixer,然后根據兩個水龍頭的距離,將熱水和冷水綜合起來。
十升喵就不一樣了,十升喵不買混合器,而是,將熱水和冷水都放到水池里,或者放到臉盆里,然后直接洗臉hhhhhhhh
那么為什么英國的水池里有獨立的冷熱水龍頭呢?
圖片來源自BBC
一名28歲的意大利人克勞迪奧·馬隆吉對BBC的記者說:“我一直想知道,為什么英國同一個水槽里會有兩個水龍頭完全分開呢?你要么被熱水燒傷,要么被冷水凍僵,似乎沒有其他選擇。”
BBC隨即采訪了英國特許管道與供暖工程學會(Chartered Institute of and Heating Engineering)首席執行官凱文?威爾曼(Kevin Wellman),關于這個冷熱水龍頭的問題,凱文?威爾曼回答道:“英國的熱水和冷水分為兩個水龍頭,這一傳統是可以追溯到熱水和冷水分開使用的那個時代,當時分開的原因是通過交叉連接從而防止污染。
冷水來自水管,適合飲用,而熱水將由通常位于閣樓上的一個本地蓄水池提供熱水服務,同時這個設計造成了壓力的不平衡,所以如果安裝了不正確的水龍頭和閥門,一股水流可能會沖到另一股。在英國,用水規定禁止熱水和冷水混合,因為閣樓水箱里的水被認為是不安全的。
早在1965年,一項名為”CP 310“的操作規程就建議,只要可能,熱水龍頭就應該放在左邊。所以,英國的熱水都在左邊的水龍頭里,多年來,有報道稱,堅持熱水在左邊的原因之一是,這樣視障人士就能始終知道冷熱水在哪一邊了。即便是現在已經開始流行使用混合的單一水龍頭,在英國仍然要求確保水在流出水龍頭之前不會混合,而且還是保持,左邊是熱水,右邊是冷水。”
下面是YOUTUBE小哥關于英國雙水龍頭的視頻介紹:
為什么英國有獨立的冷熱水龍頭?來自YOUTUBE小哥的見解 ?
小哥的英文字幕:
The mixer tap, brilliant invention, and yet something that seems to have passed Britain by. You'll get Americans coming over here and asking why our taps look like they're from the 1940's.
And even here, in my parents' bathroom. I'm visiting my folks this weekend and they just had a new bathroom put in separate hot and cold taps. And there are all sorts of theories about why that might be, generally revolving around 'Well we're British,' and 'Stiff upper lip,' and 'You know we don't need mixer taps. We've never had them.'
And well, that's partly true, but it also goes back to how houses in Britain were constructed after World War II. In most old British houses there's a cold water storage tank up in the attic. It's reasonably sized, about 250 liters, and that in turn feeds a hot water storage tank that's for the central heating, and for hot water in the bathroom, and in the kitchen, and so on.
But the trouble is that might not be entirely safe drinking water. Because that cold water storage tank, in some houses that weren't properly maintained, might have been open to the elements, or silted up, or covered with iron rust, or, in one particular case you can read about, have a couple of dead rats floating in it.
That water might technically not be drinkable. And under the regulations - I looked up the regulations, it is not counted as drinking water. The cold, meanwhile, at least certainly in the kitchen, and sometimes the bathroom, too, the cold water comes straight from the mains. That counts as drinkable.
So here's the thing: You have cold, safe, the regulations call it 'wholesome', drinking water, and you have, well, almost certainly safe but not technically, not legally under the regulations, hot water.
And never the twain shall meet. If you have a mixer tap, then technically, the unsafe hot water, in the worst case scenario, when there is a backwash valve failure and the mains turns off, that unsafe water could go back, backwash through all the systems, and go out to contaminate the rest of the street or the rest of the water system. That's not legal, therefor no mixer tap. You don't cross the streams. Nowadays, of course, it's a little bit different. This house had its hot water tank ripped out a few months ago. The attic is now just a big empty space again. And, well, there is a very modern, shiny bit of technology downstairs that heats up water on demand. All new built houses go this way. If they've got mixer taps, it'll be absolutely fine. But...
I remember being told as a kid 'never drink from the hot water tap.' And that stuck with me. Even now, if there is a mixer tap and I want to drink from it, I will run the cold water for a few seconds just to make sure anything that's unsafe has come out of it. Even now old habits die hard. And sometimes these things just feel a bit safer.
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