Kalkwasser - Translates from the German for limewater and is a solution made by dissolving Calcium Hydroxide in water. The resultant fresh solution is alkaline with a pH of 12.4 and contains a ready supply of both Calcium ions and Carbonate ions.
The solution reacts readily with CO2 in the atmosphere to form calcium carbonate and so it must be made in a relatively air tight environment which is where the kalkwasser stirrer comes in to play.
The KM500T is the standard stirrer suitable for tanks up to 1500 liters (396 US gallons) and will produce up to 5 liters of kalkwasser per hour.
Can be stood on the outside of the aquarium or sump.
Must gravity feed back into the water supply.
Feed with RO (Reverse Osmosis) water from a reservoir or direct from the RO unit.