View Full Version : Tunze Osmolater to K1 Kalk Stirrer

01/09/2015, 05:26 PM
I have a tunze Osmolater that is about 10-12 years old and I'm having trouble connecting the hose to the fitting on the K1 Kalk Stirrer. I can force the hose into the fitting but not all the way and it leaks when pushing water into it. The hose is a bit larger than the standard 1/4" tubing used for RO/DI and that the fitting on the top is built for. How are others getting this to work? I've tried and the 1/4" hose will not fit on the Tunze pump to rerun to the Kalk Stirrer.

Any feedback is appreciated.



Avast Marine
01/10/2015, 07:41 AM
Pushlock Tubing Adapter 3/16" Tube ID x 1/4" Stem OD

here: http://www.avastmarine.com/ssc/do/product/pushlock-fittings/Pushlock-Tubing-Adapter

01/10/2015, 09:03 AM
Thanks Dan! Do you also sell or know what I can use to prevent the back-flow into the reservoir? A check valve for the line?

01/10/2015, 12:26 PM
Yes, the 1/4" check valve will work:


01/10/2015, 01:28 PM
Excellent. Should it be the 3/16 to fit in the Tunze hose. Should that be the one?

Avast Marine
01/12/2015, 09:03 AM
Yes, thanks for the order Brian!