Best (non-stinky) sewer hose?

[maineman]

Hello all,
Any suggestions for a very flexible sewer hose that resists odors?
Thank you

 

[HopCar]

Raritan Saniflex, very flexible, ten year warranty.
https://www.raritaneng.com/en_US/products/saniflex

 

[Sealife]

I used it extensively on refit. 8+ yrs on full time use, still fine. Also very easy install.

 

[HeadMistress]

Saniflex is the only sanitation I recommend now. Defender has it for the best price I've found Raritan Sani / Flex Sanitation Hose at Defender


--Peggie

 

[Comodave]

Absolutely SaniFlex hose, nothing else!

 

[porman]

Well thanks guys. I replumbed my system three years ago with Trident 101 because it was recommended here.

 

[Comodave]

I only use the SaniFlex for sewage and sewage vents. I also use it for bilge pumps since it is so flexible and smooth bore.

 

[HopCar]

Well thanks guys. I replumbed my system three years ago with Trident 101 because it was recommended here.

Trident 101 is good too. Just not as flexible. It’s also less expensive. You’ll get good life from the 101.

 

[Comodave]

Personally I don’t care about the small cost difference, I just want the best hose for sewage that I can get so I don’t have to replace it again.

 

[High Wire]

Do NOT buy 148 white pvc hose for waste hose!
Saniflex rules

 

[Delfin]

Hello all,
Any suggestions for a very flexible sewer hose that resists odors?
Thank you

. Use whatever you want but wrap it in Petrowrap for completely odor free hose.


https://www.go2marine.com/PetroWrap...OQGP3BRwWcQqdmpQCIilWsCosqsUb5z0aAk-wEALw_wcB

 

[DDW]

The extra flexibility of Saniflex is well worth the cost. That it happens to resist odors is a bonus.

 

[Airstream345]

Saniflex for the bendy bits, PVC for the straight runs.

 

[Comodave]

Yes, PVC works well for straight runs and it doesn’t permeate.

 

[Leo Reise]

BTW - the main cause of odour from sanitary hose is sewage not cleared or dead small sealife creatures in the hose.
1 solution is it takes 1.5 to 2 pumps per foot of hose between the head and tank to clear the hose: 5 feet 8 to 10 pumps.
2 solution is a bucket of fresh water once or twice per day - depending on head use.
My thoughts

 

[AlanT]

Saniflex for the bendy bits, PVC for the straight runs.

+1 If you can run PVC pipe for a significant part of your runs it is well worth it, both in initial saving in cost and achieving absolute impermeability. Saniflex is great but it will eventually permeate smells. I am talking 15+ years.
~A

 

[Mark Myns]

Pvc

What does Peggy think about using PVC for part of the sanitary run? It seems to me that the additional fittings would cause problems by eliminating smooth flow for the entire distance. Is my thinking wrong?

 

[HeadMistress]

Your thinking is spot on, Mark. Hard pvc is fine for a single long (5' or more) straight run, but most people don't realize that hard pipe should be "soft coupled" to anything rigid (toilet, tank, thru-hull) with a foot or two of hose. More than one LONG piece of hard pipe in the same installation will result in a whole bunch of fittings that can trap bits of waste and TP.

Saniflex is great but it will eventually permeate smells. I am talking 15+ years.
Well, Alan...10 years is the average working life of any hose because rubber and plastics dry out over time, becoming hard, brittle, and prone to cracking and splitting. In fact, BOAT/U.S. published an article several years ago in which they said old hoses connected to thru-hulls left open when no one is aboard is the leading cause of boats sinking in their slips.

BTW - the main cause of odour from sanitary hose is sewage not cleared or dead small sealife creatures in the hose.
That's true of toilet intake hoses, Leo, but very little sea life--alive or dead--goes through toilet discharge lines. It's actually waste left to sit or cling to the walls of toilet discharge and pumpout hoses that permeates them....And all that extra pumping is just filling up your holding tank...it doesn't accomplish anything more than the bucketful of fresh water you're flushing daily, and you can accomplish just as much with a quart/liter or two as with a bucketful.

--Peggie

 

[McDan]

Hey all, don’t overlook gasses as the cause of hose permeation. Material residue on the inside surface of the hose may exist but the smelly gasses are constant.

 

[HeadMistress]

Well thanks guys. I replumbed my system three years ago with Trident 101 because it was recommended here.

Trident 101 is excellent sanitation hose...the only one I recommended for years. It has only one major drawback: it's as stiff as an ironing board, making any hose run that isn't a long straight one a major challenge requiring heat and sometimes inline radius fittings. And then Raritan introduced their Sani-Flex hose with a 10 warranty against odor permeation--twice as long as any other hose--and is so flexible it can be bent almost as tight as a hairpin without kinking. I watched it, keeping an eye out for boat owner satisfaction, for several years before recommending it. Never saw a single complaint..and still haven't. It quickly became the top-rated hoseand still is.
Interestingly, Trident soon increased their odor permeation warranty on 101/102 (identical except 102 has a white "skin" on it for cosmetics) to 10 years to compete with Sani-Flex.

Btw...if you aren't in the US, Vetus top-of the line sanitation hose is the closest thing to SaniFlex.

--Peggie

 

[Waters7]

Saniflex is one of the best sewer hoses out there. You can take my word! Make sure to use double-clamped connections and flush regularly to prevent buildup.

Also, keeping your hose clean and using something like a small ionizer called airlock inside the boat can help keep lingering odors from creeping in.