DIY Kalk Doser

I used this method with a 1G ozarka sports water bottle. You have to watch out for the airline tubing and the control valve since it will cake up with Kalk and should clean it regularly.
 
I have a 5gal water jug that has been halfway modified to do this, you are welcome to have it. All you need to do is add the self starter tube and you are good to go.
 
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