Lines to use, dashed or not Oct 17, 2016 9:41:18 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by isiahs on Oct 17, 2016 9:41:18 GMT -5 If I have an element and transmitter in a P&ID what type of line should connect them? Solid or Dashed? The convention I was taught was transmitter to indicator/control has a Dashed line.