Reply To: Blockage clearing methods Home › Forums › Public Forums › General Plumbing › Blockage clearing methods › Reply To: Blockage clearing methods 25 Nov 2000 at 4:42 am #288888 SylvanLMPParticipant Depending on the type of stopage would predicate the type of method used for cleaning. High pressure water jetting. Acid or other chemicals Steam Sand blasting
