BD500 BD501 Yarrow Chamomile Nettle Oak Dandelion Valerian Compost Cow Pat Pit



                        BDAI Secretariat, #20, 16th 'C' Main, 2nd 'A' Cross, 4th Block, Koramangala, Bangalore 560 034, India
bdaind(at) or Secretary at secretary(at)         Tel: +(91) 9448 067 088



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  Stirring Large & Small Quantities                                                       

Rainwater is preferable and, in areas of little pollution, can be collected off the roofs of houses, woodsheds and hay barns. It can be stored in concrete, galvanised iron or untreated wooden tanks.

If spring water is used, it should be checked for pollutants and chemical residues. If found to be clean, it should stand in the light and air for two days, as it may have been underground for many years. River water should likewise be checked for purity.

Water for stirring should be between 25 and 30C, and is best heated with a natural heat, such as a flame or sunlight. Suitable heaters are butane or woodburners and solar panels. Do not use electricity.


How to Stir
For up to 1 acre of land
Up to 13 litres can be comfortably stirred by hand with a small stick. Stir while resting your elbows on your knees. To make a good vortex requires a wristy movement. Start slowly at the edge of the bucket and move into the centre, increasing the stirring speed. When a crater appears in the water, break it by stirring in the opposite direction.

You can change hands when changing direction, and it is easier to always stir outward, i.e. with the right hand clockwise and with the left hand anticlockwise. There should be about three direction changes a minute.

Start slowly at the edge of the bucket...

....and move into the centre, increasing the stirring speed.


How to Stir
For 1-10 acres of land
Up to 130 litres can be stirred using a 200-litre plastic drum or an oak barrel, with a 1.3-1.6m long 2.5cm diameter wooden rod, suspended by means of a nylon cord tied firmly to an overhanging branch, beam or a tripod of stout poles. The rod is tied so that it swings 7cm above the bottom of the barrel. The rod thus takes all the weight and makes the stirring and creating of the vortex relatively easy.


 Tripod Rod
Tripod Rod

 Tripod class
Give it a turn!

 Tripod Stirring

 Tripod vortex
Good job! Here comes the vortex!

 Tripod stirring
Want more chaos on the reverse turn? Add some 'brush' to the rod.


How to Stir
For 10-200-500 acres of land
Up to 550 litres an hour - enough for over 40 acres - can be stirred in the Virbela Flowforms used by biodynamic farmers in India. The movement the water makes as it passes through the flowform cascade is one of alternating vortices. This is very similar to the succession of vortices produced in a bucket wheel stirring, except that you can see the whole succession laid out in front of you at once. The vortices, however, occur one after another, just as they do in a bucket, because the water flows from a clockwise-rotating chamber into an anticlockwise one, and so on.

A flowform cascade always has a separate 'entry' form at its head, which sets up the right conditions for water entering the system. With a cascade of seven bowl forms (plus entry form) it is possible to stir up to 550 litres in one hour. With 7-14 (plus one) bowl forms it is possible to stir up to 2700 litres in one hour. At the moment a high-volume, low-pressure pump is used to circulate the water continuously for an hour. Other pumps with a softer action are being investigated.

 Virbela Flowform
Virbela flowform with kidney-shaped cascade bowls

 Virbela Flowform
And kidney-shaped reservoir tank.

Virbela Flowforms...

...for large farms

House Garden Flowform
And for House Gardens too!!


How to Stir
For 10 ml of Preparation BD507 - Valerian
10 ml of Preparation BD507 Valerian in 1-2 litres of pure water is stirred for 10 minutes before adding to a compost heap, a cow pat pit or liquid manure. One of the most efficient ways of stirring such a small quantity is the rhythmic horizontal back and forth movement, at chest level, of a 1-2 litre water bottle. This creates the required vortex movement.

 Stirring 507
Straight & level

 Peter Stirring 507
See that chaos!

Stirring 507
Well done!


BDAI Secretariat
#20, 16th 'C' Main, 2nd 'A' Cross, 4th Block, Koramangala, Bangalore 560 034, India
bdaind(at) or Secretary at secretary(at)  Tel: +(91) 9448 067 088