Tubing for K1 kalk stirrer

[firemountain]

I will be ordering your K1 Kalk stirrer in the upcoming week. I know it has a 1/2 output barb fitting. Out of the types of tubing you sell on your website, which one would you recommend that will hold up the longest and is most durable?

 

[ctenophore]

I use silicone tubing on the output of my personal stirrer. It has been on there for about 4 years now and is still super flexible. I can take it outside and whack it on the driveway to break out all the precipitated CaCO3 that builds up over the years, and it looks pretty much like new afterwards.

 

[firemountain]

Thank you!! I know that the limewater is somewhat caustic, and just want to make sure I buy the right tubing. Thanks!!