Hi' I have a SIHI 2"X2" in and out Water ring Vacuum pump for sale or Swap, it has a (muffler water seperator) and has a three phase 5.5 kw motor.
This vacuum pump is not a toy, it's suited for industrial aplications such as
Vacunm loading or recovery through a condenser , column or heat exchanger, it requires a simple Cystern supported water supply as little as 50L or less depending on it's use and it recycles the water without the need for a water pump.
I would concider swpping this unit for a small centerfuge twin outlet seperator manual or self cleaning type of 20L p/m or smaller Three phase motor or single phase ok, not the Diesel craft or Spinner Type intended for autimotive use I have these already.

The unit is located in Liverpool N.S.W. This unit will be avaliable if not sold in the mean time after 7/1/08 it's advertised on E-Bay.

I only just thought it might be of interest on this forum just now It would be ideal for a medium to large Bio production plant and has many other uses.
Regards,
Ferraloil.