Interests: MAKING BEER,BEER,BEER AND MORE BEER!
mmmmmm BEER.... mmmm hmmm.. oh I'm sorry... what were you saying?? did you have a question?
LOL.. Just messing around. I am by no means a Kalk expert - but I have spent more than a few years playing with it and have more than a few DIY reactors that I've tinkered with.
Dosing milky Kalk is NOT recommended. Some people do it, but I have read that it's a bad idea because Kalk (pickling lime,etc) doesn't disolve correctly in SW, but rather reacts with SW to form nasty compounds. It's been many years and I don't have the article in front of me, but IMS it was written by Randy Holmes-Farly and part of the series he did on limewater. I think it was the article where he talked about using vinegar... or was that Bingman... Sheesh.. too long ago.
Anyway, if you are tinkering with making a Kalk reactor, there are a couple of important points to consider.
1) The container must be devoid of air. This is because the saturated Kalk solution reacts with CO2 in the atmosphere and produces Calcium 'something-er-rather' which basicly precipitates out or forms a nasty crust on your solution. The larger issue is that just like sugar crystals in a bowl of simple syrup (for all you cooks out there), the Kalk solution will start to precipitate more because there is a precipitate... at least that's what I remember.
2) You don't want to dose milky kalk, so you need to mix (if you mix) when you aren't dosing. This means either two pumps, or a pump for mixing (on a timer) and a gravity feed drip for dosing.
The powder in the bottom of the jug/reactor after Kalk solution is formed is a mix of precipitates - generally phosphate, heavy metals, calcium hydroxide (undisolved), etc. If you are using a reactor, this is the stuff that you clean out every few months. If you are using jugs to make this - this is what you should rinse out before you make your next batch.
John.
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