How do you clean liquid test vials?

[tcarswell]

DI is DeIonized.. takes the last of the disolved solids out of the water.. i get a TDS reading of 3 after it goes through a charcoal filter..

nice , thanks for the help

 

[chesterthehero]

no problem.. im not saying this is the best or even right... its just what i do... for the record i dont test the water EVER... i make my gf do it.. i cant tell if its green/yellow blue/purple orange/red... im a guy... i smell the tanks... if it smells like feet its nitrites.. if it smells like a pond its nitrates.. if it smells like pee its ammonia...