About stirring devices and warming water
Warming the water  | 
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Warming water up to body temperature seems to make at least Horn Dung more effective.  | |
Wood: Potato steamers / feed cooker  | |
Gas: Continuous-flow water heater for mobile shower (camping)  | |
Oil and electricity seem to be detrimental for the quality  | |
Installations for stirring  | 
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Stirring vessels  | 
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Size of the vessel: If you want to stir in a powerful way, you have to adapt the quantity of the water and the size of the vessel to the stirring persons. If you have not enough staff or a big sprayer tank, and you make a compromise, maybe the quality can diminish.  | |
Form of the vessel: Circular, cylindrical, no more than slightly conical. Relation between diameter and hight: Golden section 1 : 1.618  | |
Stoneware: Larger vessels than 40 litres are not produced anymore.  | |
Copper  | |
Stainless steel: Requisites for fruit-presses  | |
Wood: Coopers  | www.kueferei-suppiger.ch www.tonneau-husler.ch www.Schreinerei-Wistinghausen.de  | 
Plastic: Seems to have qualitative disadvantages. If you have plastic vessels, they may serve to practise the stirring until you have found the optimal sices for your stirring vessels.  | |
Suspended tools for larger quantities  | 
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I give descriptions and instructions for constructions in my book  | 
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Complete stirring devices  | |
Dead straight wooden poles  | 
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Curtain rods not colored, Ø 35 mm, 250 cm long DIY superstores etc.  | 
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Poles on demand, also in ash.  | Gewa Holz GmbH  | 
Poles on demand, also in ash. Also turned stirrers.  | www.drechslerei-meier.ch   | 
Stirring machines  | 
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There exist also italian machines. I do not know them.  | www.ecodyn.fr 
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