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Kalk Stirrer Kit
Kalk Stirrer Kit
Kalk Stirrer Kit

Kalk Stirrer Kit

106 reviews
$ 169.99

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.

If you plan to install a kalk stirrer in your auto top-off system, we recommend this small valve to control the output of the pump to a fast drip.  If you have a Tunze ATO, use this fitting to connect their tubing to the pushlock connector on the lid of the stirrer.  Please see the kalk stirrer manual for additional installation tips and ideas.

 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

Customer Reviews
4.9 Based on 106 Reviews
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jassem A.
United States United States
Kalk Stirrer Kit

Excellent service, product, and installation instruction.

Javon B.
United States United States
Kalk reactor

Very good Dan and Justin are very helpful

Dan S.
United States United States
Perfect piece for the job

The kalk stirrer is perfect. Works as described great fit and finish. Would highly recommend it to anyone looking to dose kalk. Will definitely buy from avast again

James A.
United States United States
Works Well

Second purchase from Avast. Decent quality at a decent price. The only complaint I have is it appears that they are running their CNCs at max speed. Some of the parts are pretty rough with one part having a large divot where the router bit took a chunk out. Strictly cosmetic and has no ill effect on the function.

United States United States
Kalk Stirrer

Great service. Easy to understand instructions. High quality materials. Definate would reccomend.