| General > General Technical Chat |
| 140 million liters of water down the drain |
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| BrianHG:
I use 100% steam distilled water exclusively for drinking, tea, and rice cooking & when I make old fashioned chicken soup. |
| Stray Electron:
--- Quote from: han on April 22, 2014, 03:10:12 am --- --- Quote from: IanB on April 22, 2014, 03:05:16 am --- --- Quote from: scientist on April 21, 2014, 06:32:17 am --- --- Quote ---Isn't that partly why water in most of the US is slightly chlorinated so that things like this don't matter? --- End quote --- In most cities, it's fluorinated with a few ug/L; helps convert the hydroxyapatite in tooth enamel into fluoroapatite, which is a bit more durable. Chlorine is usually what they dump in copious amounts into swimming pools. --- End quote --- Drinking water is chlorinated at the point of supply as a standard measure in treated water systems. You can smell the chlorine if you run fresh water from the tap/faucet at high velocity so it froths up. --- End quote --- why they didn't use O3? (ozone) --- End quote --- Some places do but it's more expensive and not as effective in killing all possible germs and the germ killing effect doesn't last as long. Somewhere I have the technical manuals for the O3 water treatment plant that's in (or was?) in Melbourne, Fla. |
| hendorog:
--- Quote from: Stray Electron on August 22, 2020, 02:39:12 am --- --- Quote from: han on April 22, 2014, 03:10:12 am --- --- Quote from: IanB on April 22, 2014, 03:05:16 am --- --- Quote from: scientist on April 21, 2014, 06:32:17 am --- --- Quote ---Isn't that partly why water in most of the US is slightly chlorinated so that things like this don't matter? --- End quote --- In most cities, it's fluorinated with a few ug/L; helps convert the hydroxyapatite in tooth enamel into fluoroapatite, which is a bit more durable. Chlorine is usually what they dump in copious amounts into swimming pools. --- End quote --- Drinking water is chlorinated at the point of supply as a standard measure in treated water systems. You can smell the chlorine if you run fresh water from the tap/faucet at high velocity so it froths up. --- End quote --- why they didn't use O3? (ozone) --- End quote --- Some places do but it's more expensive and not as effective in killing all possible germs and the germ killing effect doesn't last as long. Somewhere I have the technical manuals for the O3 water treatment plant that's in (or was?) in Melbourne, Fla. --- End quote --- Not an expert, but I think you are correct. I have worked on a couple of water treatment plant jobs in industrial automation for small towns. The Chlorine was added at a level such that 'at the end of the line' there will be a enough chlorine remaining in the water - called free available chlorine - to continue to kill bugs. 'At the start of the line' the chlorine level is higher as not much of it has reacted with anything, so that is another limit. Back when I did this they were more concerned about killing goldfish with high chlorine doses than any health concerns. Ozone wouldn't have that effect. |
| EEVblog:
--- Quote from: eti on August 22, 2020, 01:12:12 am --- --- Quote from: EEVblog on August 22, 2020, 12:51:30 am --- --- Quote from: SeanB on April 21, 2014, 05:16:30 am ---If you have ever looked at what is in the piping used to deliver water you will add a filter. --- End quote --- Mrs EEVblog is a former water quality scientist with Sydney Water. We filter all our drinking water ;) --- End quote --- Dave, can you recommend a permanent installation filter type? We use "Brita" jug for 5 years, works well but something more permanent would be better I feel. Thanks! --- End quote --- Can't remember the exact model, but something like this: https://purewatersystems.com.au/collections/reverse-osmosis-purification/products/4-stage-reverse-osmosis-under-sink This one without the tank is cheaper: https://purewatersystems.com.au/collections/under-sink-water-filtration-systems/products/twin-under-sink-water-filtration-system Had ours for well over a decade. |
| BrianHG:
--- Quote from: EEVblog on August 22, 2020, 03:58:06 am --- --- Quote from: eti on August 22, 2020, 01:12:12 am --- --- Quote from: EEVblog on August 22, 2020, 12:51:30 am --- --- Quote from: SeanB on April 21, 2014, 05:16:30 am ---If you have ever looked at what is in the piping used to deliver water you will add a filter. --- End quote --- Mrs EEVblog is a former water quality scientist with Sydney Water. We filter all our drinking water ;) --- End quote --- Dave, can you recommend a permanent installation filter type? We use "Brita" jug for 5 years, works well but something more permanent would be better I feel. Thanks! --- End quote --- Compared to the price I pay for distilled water and the quantity I drink, the I would break even in around 2 years. Can't remember the exact model, but something like this: https://purewatersystems.com.au/collections/reverse-osmosis-purification/products/4-stage-reverse-osmosis-under-sink This one without the tank is cheaper: https://purewatersystems.com.au/collections/under-sink-water-filtration-systems/products/twin-under-sink-water-filtration-system Had ours for well over a decade. --- End quote --- Nice filter. I wonder what would happen if you placed a few in series. Would the water pressure even make it through? Would those % removal figures increase by and additive or multiplicative factor... With the price of the unit compared to the local price of distilled water, I would break even in 2 years. However, without knowing the price of new filter cartridges or how long they would last with my tap water, I cannot tell if it would be a winning or loosing proposition. |
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