On 20 Jan 2014 at 11:16, Marshall wrote about : Subject : Re: CS>Where to buy generator
> I have used an aquarium water pump for circulation for years. They are all > plastic so no contamination. Something like > http://www.amazon.com/Aquatop-NP-302-Aquarium-Submersible-Pump/dp/B006K31W > LC/ref=sr_1_2?ie=UTF8&qid=1390234523&sr=8-2&keywords=aquarium+pump should > work fine. > > Marshall > I use a tall "brewing" vessel. No stirring. The EIS drifts downwards off the electrode, fresh water is continually introduced to the electrodes by density exchange. OK, Tony
