Better solution vs. Powertank: thread link

There is nothing special about Powertanks tanks - except for the paint. <img src="/forums/images/graemlins/rolleyes.gif" alt="" /> The regulator - while it will allow more CFM over a conventional regulator - is waaaaaaaaay overpriced. I use mine everyday (which is designed for higher CFM) - works good. Has a little problem freezing with a sandblaster on a full tank (I think the CFM requirement on the blaster is close to 7 CFM) but I would bet a hundred bucks the Powertank regulator would too.

concreteprinter.com