jjinvan said:
Ok, here's the issue with the cloudy water and boiling etc.. Don't bother asking me for references, cuz I can't be bothered, look it up yourself
dude … i am really not looking to flame you ... but when i see a load of crap like this i just can't let it slide.
i will not ask you for any references because i already know you will not be able to find any.
jjinvan said:
The city of Vancouver kills 'things' that get into the water supply by zapping the water with high intensity UV lights instead of dumping as much chlorine in as most other cities do. They do this because the chlorine is bad for the salmon and the tap water can turn into river water (if it's used to water lawns it can get into the water table, stuff like that). Of course this argument is mostly bunk because being out in the sun and open air makes the chlorine go away (which is why you have to keep adding more to your pool even if no one goes in).
Anywayz, since the killing of the nasties is dependant on hitting the nasties with high intensity UV light (because they don't put enough chlorine to do it) if the water is cloudy then that blocks the UV light and some of the nasties might be 'hiding' in the water and not get zapped. Of course, if there are no nasties in the water in the first place then it's just a little dirt and a little dirt never hurt anyone.
where to start with this …
water treatment is done by the GVRD, which includes the city of vancouver, but the city of vancouver itself does not provide water treatment.
UV disinfection is presently not used by the GVRD.
there are 3 sources of water in the GVRD.
the coquitlam watershed is treated with ozone and provides 20% of the regions water.
the capilano watershed is chlorinated and provides 40% of the regions water.
the seymour watershed is chlorinated and provides 40% of the regions water.
presently there is a new water treatment plant under construction for the seymour and capilano watersheds.
this new facility will treat the water by a combination of: filtering; UV disinfection; and chlorination.
the filtration and UV processes will reduce the amount of chlorine required but will not eliminate it.
this facility is scheduled to go on stream in 2008.