If you do a lot of testing and don't like "doing the dishes" (rinsing out all the vials) you might want to check this out on the DIY Forum
Rick
VIAL RINSING GADGET---SPEEDS UP TESTING
I actually enjoy testing my tank water as well as doing a lot of experimentation to better understand and improve my measurement results as well as provide new insights to share with the Reefing community. However the one thing I do not enjoy is the rinsing and cleaning of the vials I use in the...
www.reef2reef.com
Rick