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potable

Drinking water, also known as potable water, is water that is safe to drink or use for food preparation. The amount of drinking water required to maintain good health varies, and depends on physical activity level, age, health-related issues, and environmental conditions. For those who work in a hot climate, up to 16 litres (4.2 US gal) a day may be required. On average, American households use 300 gallons of water a day.
Typically in developed countries, tap water meets drinking water quality standards, even though only a small proportion is actually consumed or used in food preparation. All public water suppliers in the US must uphold a certain standard of water quality. If the requirements are met, Americans can drink their local tap water. Other typical uses for tap water include washing, toilets, and irrigation. Greywater may also be used for toilets or irrigation. Its use for irrigation however may be associated with risks. Water may also be unacceptable due to levels of toxins or suspended solids.
Globally, by 2015, 89% of people had access to water from a source that is suitable for drinking – called improved water source. In sub-Saharan Africa, access to potable water ranged from 40% to 80% of the population. Nearly 4.2 billion people worldwide had access to tap water, while another 2.4 billion had access to wells or public taps. The World Health Organization considers access to safe drinking-water a basic human right.
About 1 to 2 billion people lack safe drinking water. More people die from unsafe water than from war, then-U.N. Secretary-General Ban Ki-moon said in 2010. Third world countries are most affected by lack of water, flooding, and water quality. Up to 80 percent of illnesses in developing countries are the direct result of inadequate water and sanitation.

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  1. C

    Expansion vessel for potable water for a combi boiler

    Hi,a customer of mine has a combi boiler and they don't have an expansion vessel for the potable hot water supply. I know there's an expansion vessel for the closed-loop central heating circuit but I doubt the combi boiler has one for the potable water. I was thinking to put one in the airing...
  2. T

    Blocked pipework in potable water supply

    Dear all, I'm hoping you can help with this because our plumber is trying hard but he's struggling to solve the problem. I'll describe the system. The water enters the apartment in a washing machine cupboard. At the inlet and at the washing machine the pressure is high. The pipework then...
  3. Bogart

    Potable water

    Having decided to revamp the kitchen this will result in the new sink being in a totally different area of the kitchen. Luckily there is waste and H&C in the vicinity. Unfortunately the cold supply is fed from the storage tank wheres the current setup is mains fed. I could run a mains supply to...
  4. GameForkStudio

    Connectors for potable water

    Hi all, A novice question. I am trying to replace the kitchen tap. The current tap is soldered to copper pipes under the sink. I will need to cut those but I don't want to do any soldering (don't have the tools/knowledg) so I was looking at other types of connectors. I found the following push...
  5. MikeJhn

    Flat 12L potable expansion vessel

    I can find lots of the above for Boiler installation, but assume for potable water they would be different internally (lined) due to possible cross contamination to the drinking water, anyone know where I can find one?
  6. A

    Will this brazing torch be suitable for general potable water plumbing?

    I salvaged a Bullfinch autotorch brazing kit from someone who wanted to get rid of it (Autotorch Brazing Sys : Autotorch brazing kit). It came with a 4 bar propane canister. I was wondering if this could be used for domestic plumbing of copper pipes? E.g. as brazing torches provide higher...
  7. C

    Potable expansion vessel hose

    Hi guys , I've heard that you can't use potable expansion vessel hoses now when installing new unvented cylinder. As it is not wras approved. It must be piped up rigid .is this true ? What do you guys do ??
  8. T

    How do I seal a hole in plastic?

    I have a plastic (possibly PVC) pipe I can't replace that has a pinky-sized hole drilled into it. Is there any way I can just seal it up? I've tried using silicone but it just sort of peeled off. Appreciate the help!
  9. B

    Looking for silicon/ plastic glue/ expoy suitable for use with potable water

    Hi there, I have one of these: The little plastic tap has a crack in it which causes it to leak hot water. It looks like the tap will be a pain in the bum to change if it is even possible. Can anyone reccommend me something to glue/seal the crack which will be safe to come into contact...
  10. C

    soder bar

    what solder bar does everybody use? does anybody make their own? or do you use leadlock?
  11. F

    Vessel

    Just wondering, I have a spare 18l potable vessel, can I use this for heating?? i wouldn't do it the other way but surely I don't see why you can't. Just seeing what your thoughts are?? cheers
  12. P

    Unvented help?

    Hello all, I need some advice please? I shut the gate valve next to the UV cylinder and drained down the tribume premier unvented system and replaced the faulty 18 litre expansion vessel ( white ) with an identical one ( generic red ) and opened up the gate valve and now have no water coming...
  13. S

    potable water piping on superyacht

    Hi there, I'm new here, so a short introduction. I'm a maritime engineer in the superyacht industry. I´m working now on a research project for an alternative piping system for our potable water. I spoke with a few suppliers of different kind of piping systems and of course they are all very...
  14. R

    USA american fridge freezer and 3 bar pump

    customer wants a fridge freezer for ice and chilled water running from header tank on a gravity mains supply?. can you do this?/?///:willy_nilly: another request is to tap into the bath tap 22mm pipes and connect a 3bar pump for 2 showers instead of dedicated supply via essex flange comments?:75:
  15. P

    best jointing compound

    a while ago i bought a jointing compound from pts and for the life of me i cannot remember the name it was yelow and blue could anyone recomend a good jointing compound
  16. A

    pressure problem

    Is there anyone that can help with this problem? I have fitted an unvented cylinder for my DH supply. I have mains cold water running into a 3 bar pressure regulating valve, this then runs to the non return valve situated just above the top of the tank. Off the valve is an 18 ltr expansion...
  17. A

    Motorised 2-Port Valve for Potable Water

    I'm looking for a motorised valve for use as a remote electric stopcock. This is to be used with a whole house automation system and therefore needs to be electric - I've looked at products like Surestop. There are many motorised valves out there but I can't find any suitable for potable...
  18. M

    Fernox jointing compound for potable water?

    Hi guys, i would really like some advice. Do you guys use PTFE tape to make your brass connections to a cylinder? Or is there a jointing compound that can be used? I filled up a horizontal cylinder today just before finishing off for the day and then get a weep on the cold feed. So had to drain...
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