I dream at night, secretly sneaking into the Yandex office and swapping hot and cold water taps, buttons in elevators and changing keyboard layouts ...
Anecdote from the site- "anekdoty.ru"
Hello dear friend, I am glad to welcome you to the open spaces of "Ya. Zen" Now we will analyze a difficult, interesting question that rarely anyone thinks about.
Many users of household plumbing are ready to shower with "rotten tomatoes" for this statement, indicated in the title. Most people think that the faucet, no matter where it is located, in the bathroom or in the kitchen, should have cold water on the right! Arguing this by saying that:
- About 90% of the population of our planet is right-handed, it is more convenient for them to turn on the cold first, and only then the hot one, in order not to expose themselves to burns.
- Including the cold first, and then mixing in the hot one, money is saved, since a cheaper liquid is initially spilled.
- In case of damage to the organs of vision (chemical burns), the user will grab the mixer with his right hand and start shedding his eyes with a cold, not hot, aggravating the situation.
It seems to be clear and understandable, according to these positions everything is clear. Hot on the left and cold on the right. But not everything is so simple.
When I started my career, I was taught by an old plumber and an experienced welder that hot water should be right. On my question: "Why not otherwise?" I got a laconic answer: "Do not chat. Do as you are told. " That's the whole argument.
I was curious why, since the times of the USSR, these rules have been adopted and many foremen and chiefs, as well as workers in the field of water supply installation, adhere to it.
It turns out that there are no installation instructions as such. There are only recommendations given in textbooks and documents. And here they are:
SNiP III-28-75
3.27 Hot water pipes are located, as a rule, to the right of the cold water supply risers.
And also an excerpt from the 1979 textbook by F.I. Gringauz "Plumbing":
Many will argue: "The author, are you fooling your head. After all, we are talking about mixers, not about risers ".
Do not hurry. If you follow this unspoken rule. Then, in most variants of apartment wiring, hot water will be on the right. Explaining, look at the mixer below, the most common form for those years, the "FIRMWOOD". And she was connected to steel and cast iron sinks rigidly. With half-inch iron pipes (tag). No flexible lines, only squeegees, only hardcore ...
More modern GOST 25809-96
3.3 The shape and design of the bodies of mixers and taps, water switches, spouts,
aerators, shower tubes, hoses, shower nets, brushes, handwheels of valve heads
or handles, details for connecting mixers and taps to cold and hot water networks,
fixing shower nets to the wall or to the faucet body by this standard does not
are regulated and determined by working drawings.
Here he regulates to rely on working drawings. If you think a little, then it is clear where the "legs grow". The education of today's engineers, who develop documents for construction, are trained by the "old school" which "hammered" into the heads of the students that we are designing - hot on the right, and cold on the left. And why it is necessary to do so, no one knows.
Most likely, the economic component is buried here, if some will design, so, and the installers will think differently, nothing good will come of it. Some in the Forest, some for Firewood.
In any case, with the advent of flexible connections and the relative ease of installation of plastic pipes, it is necessary to install the water supply to consumers as it is convenient for you and the customers. That's all
From SW. Timofey Mikhailov.