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 KM800 is a stirrer suitable for larger tanks and commercial systems holding up to 2kg of calcium hydroxide and producing 30lt - 6.7 UK gallons - 7.5 USG per hour of kalkwasser.Technical DataFor US 110V specifications please visit our D-D USA section of the websiteKM800T Stirrer: Article No. 87010Can be stood on the outside of the aquarium or sump.300mm - 12" body diameter.Must gravity feed back into the water supply.Feed with RO water from a reservoir or direct from the RO unit.Use in conjunction with a top up system.Makes up to 30 lts 7.5 USG of kalkwasser per hour.Dimensions:L 400mm W 400mm H 800mm.L 15.8" W 15.8" H 31.5".7.5V 3 watts consumption.Suitability:Suitable for commercial aquariums or very large home systems