Scientists cook up new recipes for taking salt out of seawater

Re:Scientists cook up new recipes for taking salt out of sea... by Retric on Sunday August 04, 2019 @12:40PM (#20607580)

Sewage and distribution is not included in these costs. Current systems get water for almost nothing it’s mostly distribution and sewage systems that you’re currently paying for.

As to why this is, a single pipe carrying 1,000x as much water costs no where near 1,000x much per foot. Each home might only need 1/10,000,000 the water, but it’s got to be built for peak demand not average useage. On top of this, people don’t live at sea level, so you need to pump that sea water up before you can use it.

PS: Not to mention most distribution systems leak significantly, that 3$ assumes 100% efficiency at 50% it’s more like 6$.

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Re:Scientists cook up new recipes for taking salt out of sea... by amluto on Sunday August 04, 2019 @02:32PM (#20608367)

None of this is at all relevant to my point. SFPUC charges over $4/ccf for wholesale water. This does not include distribution costs, and this is paid regardless of whether the water is sold, leaks, or is used for firefighting. If SFPUC’s wholesale customers purchased desalinated water and managed to escape their SFPUC contracts, they would eliminate this expense.

edit: http://bawsca.org/water/rates/wholesale

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Re:Scientists cook up new recipes for taking salt out of sea... by Retric on Sunday August 04, 2019 @03:54PM (#20608858)

That’s not exclusive price just per gallon of water.

https://sfwater.org/modules/showdocument.aspx?documentid=774...

Wholesale untreated water is 1.02$ per 1,000 gallons. Page 16: ( 0.76 per 748 Gallons delivered). Plus a fixed fee for the size of the pipe (22.67$ for a one inch pipe.)

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Re:Scientists cook up new recipes for taking salt out of sea... by amluto on Sunday August 04, 2019 @04:15PM (#20608973)

Curious. I’m pretty sure my water provider pays the BAWSCA rate. I don’t know why it’s so different.

edit: You’re looking at rate W-24. BAWSCA users seem to pay rate W-25, which is far higher. I don’t know exactly what the difference is.

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Re:Scientists cook up new recipes for taking salt out of sea... by dillonmckay on Sunday August 04, 2019 @01:48PM (#20608051)

My municipality loses about 60% of its water supply due to leaks.

They buy the water from the neighboring municipality for $3/1,000 gallons, and sell it to the users of the system for $23/1,000 for the first 1,000 gallons.

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Re:Scientists cook up new recipes for taking salt out of sea... by amluto on Sunday August 04, 2019 @08:29PM (#20610122)

Yikes! I thought I paid a lot for water, but you have me beat.

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Re:Scientists cook up new recipes for taking salt out of sea... by londons_explore on Monday August 05, 2019 @04:21AM (#20612290)

$1000 per 1000 gallons is the price in some parts of the world.

You soon realise half a gallon is plenty to drink, and you don't really need water for much else.

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