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Kalk Stirrer
Kalk Stirrer
Kalk Stirrer

Kalk Stirrer

26 Reviews
$ 219.99

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. The simple top loading 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 stirrer 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 Manual

Customer Reviews

4.9 Based on 26 Reviews
5 ★
4 ★
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abulrahman b.
United States United States

Solid and great

Every thing is awesome

james c.
United States

Kalk stirrer

This item was as advertised simple to set up works flawlessly.

United States

Safe Kalk

Design is brilliant. Keeps the water saturated, and when used with a peristalic dosing pump, you can deliver steady stable dosing. I run a pH monitor on a controller to shut of the dosing pump if it were ever to fail in the on position, but thats never been a problem with dosing pumps.

Steve D.
United States

Great addition to reef tank

Kalk stirrer took a total of 5 minutes to unpack and set up. Solved my problem of low PH. Works great !!!!!!

Walter B.
United States

Excellent Customer Service

I have been ordering from Avast Marine for over three years. Never once have I had an issue that was not immediately addressed. It is great to know that we can truly support our local businesses and they will deliver the level of customer service that the community deserves.