Need some Opinions =) from the Reefs expert and Fans

[marie]

Originally Posted by mr_alberta

A super easy (and cheap) way to drip kalk is to use a 2L pepsi (or other pop of your choice) bottle, drill a hole in the cap for a 1/4" dia. hose and get some sort of valve to adjust flow rate.

Or if you can't find a valve, tie a knot in the hose and tighten until the kalk drips out at the rate you want to dose