Perc test Home › Forums › Archives › Old Bulletin Board Archives › Perc test This topic has 0 replies, 1 voice, and was last updated 24 years, 10 months ago by Mike Whitney. Viewing 0 reply threads Author Posts 29 Jun 1999 at 12:05 pm #282041 Mike Whitney Ok. I need to do perc test at one of my sites…..now how do you dig a 8 inch across round hole 36 inches deep WITH OUT glazeing the sides and bottem?? Author Posts Viewing 0 reply threads The forum ‘Old Bulletin Board Archives’ is closed to new topics and replies.