Dave Roelants has a Prochem machine and it was slightly smaller than an E30 but I can't find the model no.Shaun
So funny.Dave, Dave Roelants is a carpet cleaner himself somewhere near Barmouth, North Wales.
I could see where you were coming from. The e30 machine is a CRB counter rotatong brush marketed by Envirodri.It is meant for "dry" carpet cleaning sponges but a lot of us have an Envirodri for agitation.Much heavier duty then a Duo, heavier and more costly too. Does a brill job though.