Gideon - I pretty much avoid electricity with the preps but don't worry about mechanical pumps. -Allan
> >Dear All, > >Following the indications in the Sattler/Wistinghausen book about >spraying 500 when the forces of crystalisation are at their >strongest in the Earth, (mid Jan. to mid Feb.). I stirred up a batch >last week, dumped it in the tractor-mounted spray rig and set off >across the fields, engaged the pto and nothing happened !! >Now the queston is, do I need to fork out to repair the pto-driven >diaphram pump or will a slightly cheaper 'Hypro' make, roller pump >do ?? >What is the established wisdom on this list, a roller pump would not >be suitable for spraying compost teas because of the violent >mechanics involved, but surely with 500 we are dealing with forces, >right ?? > >Gideon.
