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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

Customer Reviews

4.9 Based on 62 Reviews
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John D.
United States United States

Kalk reactor

I really like this product as the self build allows me detailed knowledge of how it works, build instructions were good and knowing what comes apart and how it comes apart when maintenance is required is an advantage. Simple and it works. i look forward to my next purchase from Avast Marine.

Sean F.
United States United States

Kalk Stirrer Kit

The Kalk Stirrer Kit was an easy and fun to build project it’s been running for a week now it took a couple of days to dial in the exact flow rate but it’s keeping my ph at 8.1 so hopefully no more struggling to maintain ph

Derek H.
United States United States

Fantastic kalk reactor kit!

This kalk reactor has worked great for me. The kit was easy to assemble given the video instructions. The parts were well machine and fit perfectly. I did have an issue with the reactor leaking around the base, but it turns out I hadn't applied enough glue---a little bit more around the seam and it sealed it right up. I highly recommend this kit!

Jonthan s.
United States United States

DIY kale stirrer... amazing!

Super simple and fun to build. I love it!

ed m.
United States

Kalk Stirrer Kit

This is an great product and easy to assemble. Materials are of high quality and the motor is silent. Customer support is also excellent. Recommend.