Alkatronics Replacement tubing warning

[newfly]

Just saw that this morning. Its not clear i should replace all the inner pump tubing, external tubing or both? I assume its the internal tube, which i see BRS sell them for $9 a pop.

@derek_SR tagging you since i know you have a alkatronics for a while

 

[derek_SR]

I believe that warning is to replace the external tubing - you can get it on Amazon - there are two sizes:

Smaller size for the reagent line - 1.6mm ID (1/16")
Larger size for the saltwater line - 3.2mm ID (1/8")

Make sure to recalibrate after you replace them.

I have had mine running for 2yrs (two tests per day) and have not yet replaced the internal tubing - although maybe I should, 9 bucks actually isn't that bad.