PLEASE, PLEASE, PLEASE do yourselves a favor and STOP USING THE WHITE PVC SANITATION HOSE. Unless you want to throw your hard earned money straight out the window this stuff is PURE GARBAGE. It can odor permeate in as little as 12 months but almost always in less than 2 years.
DO NOT USE:
Clear PVC Anything
The above hoses are pure unadulterated JUNK and a wallet draining rip off. Please stop supporting the companies that make this crap by purchasing it. It is NOT a sanitation hose no matter what they tell you.. If you want your vessel to smell like a cess-pool go for it, otherwise use Trident #101 or Trident #102.
Trident #101 (black)
Trident #102 (white)
Then if you can't get #101 or #102:
Shields Poly X
Raritan Sani/Flex Hose (this may be the new "best" sanitation hose but we need more years of data to prove it)
Shields #101 (this is NOT the same quality hose as Trident #101/102 but far better than any of the white PVC junk)
Just spent all day last week in a boat with "new hose" which was 1.5 season old Shields #148. It is totally odor permeated. It was so bad I opened every port and hatch and still felt nauseous. The boat yard charged him 3k for a brand new holding tank and 100% new hoses, 16 months ago!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
With our brand new 2005 Catalina 310 the crappy factory white PVC hose was permeating by the early summer of 2006 (less than 12 months) and we use Odorlos religiously.
We are on our 7th season with Trident #101 and ZERO, ZERO, ZERO boat odor....... If you want your boat to smell its best Trident #101 or #102 are the ONLY time-proven hoses that can do so.
P.S. For the 5/8" vent hose Trident series 100 (wet-exhaust hose) in either wire reinforced or non-wire is a very similar construction to Trident #101 and will easily last 7-12 + years.. Any Trident wet exhaust hose will outperform ANY of the crappy white PVC "sanitation" hoses by about 3 - 5 times. Trident #101/102 however is even better.