Water Filter

strange-steve said:

I've never actually timed it but I'd guess about 45 mins.

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Saisonator said:

That's better than I thought, I was kind of guessing one of them would take all night to gather 30 litres.

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Dutto said:

Ouch!

Have you ever though of sinking a well in the back garden? Seriously, if you are alongside a river then the water-table should be fairly shallow so it wouldn't have to be all that deep; and filtering the water through a few metres of land will do wonders for getting rid of any nasties.

Almost all "off the hill" water can be cleaned up by passing it through a cistern filled with sand (that acts as a filter) and broken oyster shells (that takes away most of the acidity).

Believe me, after suffering the depredations of Anglian Water (and paying through the nose for stuff that falls out of the sky), I would love the challenge of designing and building something like that.

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divrack said:

............. Pretty sure I'd hit rock fairly quickly digging a hole although im basically on the bank of loch awe

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Dutto said:

Back in the 1960's I was diving in Loch Awe and saw the most definitive "thermocline" ever.

It was possible to have the break between the warm and cold water just above my head so that looking down I could see all the way to the bottom of the Loch (about 10m at that point) but looking along the thermocline from underneath was like looking along a huge mirror as the change in water temperature and densities bent the light.

Sheer magic; and a lovely place to visit if there isn't an "R" in the month!

I wouldn't worry about digging a deep well because all you need is a shallow "cistern" where you can collect water filtered through the surrounding soil, peat, gravel etc.

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