What Water Do You Rinse With?

[buzzfin]

Tap and RODI water, just depends on what I am cleaning!

Same here, except for hanna checkers which always get RODI.

 

[Reefer Matt]

Admittedly I rinse Hanna vials with tap water and shake them dry as well. But my tap water tds is 144 ppm. Haven’t had any issues, but it might be just my situation.