HISTERICAL PLUMBING Home › Forums › Public Forums › Drainage & Sewerage › HISTERICAL PLUMBING This topic has 1 reply, 2 voices, and was last updated 22 years, 2 months ago by racefanone. Viewing 1 reply thread Author Posts 1 Sep 2002 at 11:17 pm #279096 Bernard Voith can anybody explain the use of a Boning Rod.Argus tuft 2 Sep 2002 at 3:22 am #300041 racefanoneParticipant Boning rods are used to estabilish grades,string lines are used with them.The rods are set up as required and the lines are strung between them as required. Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In