Vernier Tech Info Library TIL #728

Question

How can I keep my pH or ORP storage solution from spilling when the sensor is in use?

Answer

There have been two styles of pH storage bottles. On the original style (loose O-ring), a dime placed under the cap and screwed on will act as a seal. On the newer style (black rubber grommet), a nickel will now do the trick. The ORP storage bottles will all use nickels.

Created by: dholmquist on October 03 2000
Last updated by: rjohnson on August 04 2004