WHAT TYPE OF URINAL IS THE BEST! Home › Forums › Public Forums › General Plumbing › WHAT TYPE OF URINAL IS THE BEST! This topic has 2 replies, 3 voices, and was last updated 23 years, 7 months ago by fourth year. Viewing 2 reply threads Author Posts 31 Jan 2001 at 8:00 pm #274550 MasterPlumbersKeymaster I would like to know what type of urinal is the best at keeping the trap arm clear and what is the difference between siphon jet and blow-out? 1 Feb 2001 at 2:02 am #289939 SylvanLMPParticipant I happen to like a floor mounted Urinal with a 3″ trap using a Sloan Royal Flushometer 2 Feb 2001 at 6:23 am #289940 fourth yearParticipant In this area, they do not allow arms to the urinal. They have to connect to the vertical pipe. None of them will do a very good job of keeping the arm clear, but a blow out might be better. Author Posts Viewing 2 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In