Brief overview of the hempcrete clay spray system from Eco Pertica, an innovator in clay spray techniques. This is a cobbled together system that uses the three nozzle, nozzle from Euromair, an Imer plaster/render pump and an insulation blower. Blowing dry hurd in the center and that hurd is wetted with clay by the exterior nozzles.
Link to original vid https://www.youtube.com/watch?v=VI1ValzOBAU