Dave
I worked for many years with a Prochem "Chisel Head" and was very pleased with it's performance. But my CFR has been a revelation. Alternative, wider heads available which can be changed in seconds, 4 different jet sizes available to suit the needs of the carpet/fabric and they're Q/D too. It's been said by many that this tool can give truckmount drying performance from a portable. I wouldn't disagree. Water consumption varies according to the jet used, but less than your current tool. An excellent tool available from Amteck UK, World of Clean, A&M in Watford and others too.
Safe, happy and quick dry cleaning:)
Ken