[penagwin]

Sorry I should've explained, warm water helps remove the gel afterwards.

If you ever have a sleep study for example they place them all over your head and it's a little messy, warm water lets it wash right out.

[mslip]

Ah ok I thought you meant using water as a medium for stimulation with gel electrodes. But yeah sadly I know exactly what you mean, I’ve had to clean a lot of gel electrodes.