People of London, does your semi-salty water also get used by machines, or does it get filtered beforehand?

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SW-User

Many places add filters. It's actually chalk as much of southern England is in chalk and a lot of water is drawn from aquifers, essentially where the water is held in the rock. Because of that you get a build up of dissolved chalk etc in the water.
It's actually good for you if you have a calcium deficiency.

scooogy · 31-35, MVIP

@SW-User I just wonder if we could save filtered water by using unfiltered water in industrial processes.

SW-User

@scooogy 🤔 I'll ask my brother in law he's a chemist and owns a company that sell chemicals for all sorts of processing. Mostly his products focus on cleaning up water after processing esp in food production to allow it to be pumped back into rivers etc.

SW-User

@SW-User OK. He says much water used in industrial processing in agriculture or food industry is straight out the mains but is then further treated to adjust sodium, calcium, and phosphorus levels in particular.

SW-User

So they further filter already safe drinking water.

scooogy · 31-35, MVIP

@SW-User okay, thanks so far. Did he say anything about the effects regarding the machines using such water (before mentioned treatment)?

SW-User

@scooogy I think it's more to do with regulation or quality of end product than about the machines. As I say his client base is agriculture and food products.