[svxistentialist]

Originally Posted by ItsPeteReally

I think the idea of the surfactant is to reduce the surface tension, and consequently the water vapor bubble size when the coolant boils (does anybody remember 2T/r from their school physics lessons?).

If you just want the surfactant effect, perhaps a few drops of detergent would work equally as well

I would say so Pete.

But the foaming would be counter-productive for heat dissipation maybe?