I bought a new Envirodri GEN4 a week ago, from John Williams (CareClean UK)...... brilliant agitation, use it on wet and dry jobs now. Once you know what you're doing with it, they really give brilliant results.
BUT....... Envirodri have started supplying them with the white & gold brushes (softer than the standard white brushes that used to come with the machine). I found these too weak. John kindly swapped them for a set of white brushes and the machine just came to life.
It's so good, I'm seriously tempted to sell up my HWEs, and go solely down the Dry and Bonnet routes..... (and I used to LOVE my HWEs!!).
Doing the dry stuff has been a labour of love for me: although it's very low risk, it's also very east to get wrong! If you just vacuum, chuck the sponges down, agitate and 'hoover 'em up' you'll get crappy results. As with HWE it's all in the pre-vac, prespray and prep work on stains, spots and traffic marks. Get those parts right, then get the sponges down, spend some good time with them with the Agitator, then vac and I am finding I get results that are at least as good as I'd get with a 400psi portie HWE.
Chem costs are a little higher than with HWE, but when you get home from a 5 hour dry job, you don't feel anywhere near as drained as from 5 hours on the wand!
Regards,
David