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Black build up on E61 mushroom - Page 2

Postby mindless_fool on Mon Jun 27, 2011 11:55 am

I wish I could tie into the system just before the membrane, but it's all one compete plastic case :(. For now I will just add tap water to the RO water to try and get it to 50ppm with the test kit
mindless_fool
 
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Postby mindless_fool on Thu Jun 30, 2011 12:31 pm

Update, few days of mixing tap and RO water mushroom looks nice and clean still, so it was RO water that was leeching stuff out of the copper....
I got one of those pen type TDS meters (really cheap on craigslist) and will try to figure out a way to mix RO with filtered water or mineral water that wont be a pain in the ass.. What PPM should i aim for so that it doesn't mess up my machine, coffee tastes great, and descaling is kept to a minimum?

thanks for all the help guys!
mindless_fool
 
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Postby Louis on Thu Jun 30, 2011 12:48 pm

mindless_fool wrote:What PPM should i aim for so that it doesn't mess up my machine, coffee tastes great, and descaling is kept to a minimum?

The answer lies here: http://www.big-rick.com/coffee/waterfaq.html
Louis
 
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Joined: Mar 09, 2009
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