DIY Kalk Dripper
This is a simple, inexpensive Kalk dripper. It may not be a precise way to dose Kalk, but it works wonderfully!
I've used one of the Oceanic containers. This holds just over 1 1/2 gallons of RO/DI water. Notice the long airline tubing to the Left, with the green Air Valve on it. This is how I control the drip.
This is how I installed the airlines thru the lid of the Oceanic container. The long tube inside, is where the long airline tube and valve is connected to outside. The short tube has the shorter length airline tub outside.
I've placed the lid on top of the container in this picture. The drip line goes to the left, and the shorter airline tube is tucked back thru the handle of the container. Notice the length of the hard airline tube. It is long enough to fit down into the container when screwed on, and be about 1 1/2" off the bottom of the container.
I simply mix my Kalk in this container. There are no holes, so no worries about anything giving out and leaking all over the place on me. I place the long airline with the Air Valve over my sump... and open it fully. I then gently blow into the short airline. This builds up pressure inside the container, forcing the liquid out the long airline. As soon as the dripping starts I'm able to stop blowing, and tuck that line back thru the handle.
Now, simple adjust the Air Valve to the desired drip rate. For my system, since I drip Kalk over night... I adjust that drip rate to 1 drop about every 2 seconds. In the morning before heading off to work, I simply close that Air Valve.
This replenishes most of my evaporation water daily, and at the same time is adding Kalk to my system.