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Kalk Stirrer Kit
Kalk Stirrer Kit
Kalk Stirrer Kit

Kalk Stirrer Kit

$ 159.99

The new motor driven design of our stirrer silently and gently mixes your calcium hydroxide 24 hours a day. This ensures that you are always dosing the freshest possible kalkwasser to your system. Since the undissolved particles are always kept at the bottom and the clear liquid is always at the top, this is the safest available way to dose kalkwasser. Simple top load design reduces the amount of time spent adding kalk powder to the reactor, which can be refilled in less than 1 minute.

No more powerheads to clean or replace, no more large vats of lime water taking up valuable space next to your tank. Once you try our new line of stirrers you'll never look at kalkwasser the same again.

Note that our stirrers are non-pressurized chambers; water enters through a 1/4" John Guest fitting in the lid and gravity drains out into your sump through the 1/2" union barb fitting in the side. The lid is not fixed in place; it lifts off for quick and easy kalk powder refills.

 Technical Data K1 K2
Tank Rating 400 Gallons 800 Gallons
Output capacity 7 Gallons/day 14 Gallons/day
Footprint 5.5" x 5.5" 7" x 7"
Height 21" 21"
Power AC 120v 3w AC 120v 3w
Warranty 1 year 1 year


Click Here to Download the User Manual

Click Here to Download the Assembly Manual

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Donald G.
United States

Easy to assemble

I have several avast marine diy kits they have all been really easy to put together and they are great products. The kalk stirrer is exactly what I needed and love the fact that it has a ph probe port that I use to track with my apex. Thanks again for another great piece of equipment!

Donald G. verified customer review of Kalk Stirrer KitDonald G. verified customer review of Kalk Stirrer KitDonald G. verified customer review of Kalk Stirrer Kit
Robert C.
United States

Great buy

Great experience. DIY kit came quickly. Kalk stirrer assembly was easy. using the on line resources. Unit is simple and works great. Highly recommend.

Matt H.
United States

Well built and easy to assemble

The kalk stirrer turned out exactly as advertised, very pleased with Avast, it’s my second product of theirs. I also have a spyglass and it works flawlessly.

Andrew S.
United States

Parts not identical to premade stirrer

Kit is good and easy to assemble. I previously had purchased an already assembled stirrer and was disappointed to find the quality of some acrylic parts were worse or different in the kit. Still a great stirrer.

Larry R.
United States

Nice Product

This is my first purchase from Avast. I purchase the Kalc Stirrer Kit and found it was a of excellent quality and easy to assemble. Definatley a good value for the money. I look forward to adding other Avast equipment as needs arise.