This Combination Hydro Aspirator’s ability to be completely disassembled and cleaned is only one point of its superiority. While the hydro is of the high vacuum type, maintaining a 26” vacuum at 60 pounds water pressure, we advise the use of lower vacuum. A standard trocar is ample to evacuate any body fluidsor gases. High vacuum will only collapse the viscera before evacuation is complete and aggravate the clogging of any trocar. We suggest you test hydro and trocar with a vessel of water.