Quote:

Level the head and pour in the amount you want the
volume to be... scribe that point




HMMMM good idea Mr P body. But that leads me to a better idea....... after I put the volume I want in the chamber which is leveled, I could use a depth mike till it just touches the liquid. I would measure a few places and average it in case it is not dead level.
thanks P.

Any other info appreciated.