As noted above, {TAIL ~ the mixing vessel} should have {HEAD ~ a configuration} that allows for the acidic and alkaline liquids to be rapidly and safely mixed together 
As noted above , { TAIL ~ the mixing vessel } should have { HEAD ~ a configuration } that allows for the acidic and alkaline liquids to be rapidly and safely mixed together
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH