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Old 02-03-2020, 02:04 PM   #1
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Sanitation Hose replacement

Hi all, I know this has probably been asked and answered many times but I did not find a thread. I want to replace all of my accessible sanitation hoses. Looks like some are going to be very difficult due to going through bulkheads. I have freshwater flush if that makes a difference. What is your favorite and why. I would like one as flexible as possible without giving away quality. Do you have a favorite brand and supplier? Thanks
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Old 02-03-2020, 02:12 PM   #2
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The only sanitation hose I would use is Trident 102.
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Old 02-03-2020, 02:31 PM   #3
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Raritan SaniFlex hose RaritanSaniFlex hose has proven to be 100% odor permeation resistant and has the added advantage of being so flexible it can be bent like a hairpin without kinking. Defender currently has it on sale for the lowest price I've eve seen: <$8/ft.

Often the easiest way to replace hoses is by connecting the old hose to the new and pulling the new hose through as you pull the old hose out. Use a male-male connector...cut the ends of both hoses as smoothly as possible, butt them together as tightly as you can to get the smoothest unbroken surface possible...."glue" the hoses onto it (duct tape won't hold if you have to pull hard, clamps can get caught). Cut the new hose off behind the connector.

Before you start, pump out and thoroughly rinse out the tank...flush gallons of water through the toilet and hoses to get them as clean as possible. Put plastic kitchen can liners under hose connections to catch any spills. Start with the highest connections to minimize spills.

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Old 02-03-2020, 02:59 PM   #4
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Saniflex. Defender.

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Old 02-03-2020, 03:25 PM   #5
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Welcome! I agree with Peggie

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Old 02-03-2020, 03:39 PM   #6
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Absolutely agree with Peggie. I just used some to install a new Marine Elegance head in our aft head. The hose is very flexible and easy to work with, relatively. Defender has a great price and will cut it to the foot.
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Old 02-03-2020, 03:42 PM   #7
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Saniflex. Defender.

-Chris
Ditto
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Old 02-03-2020, 04:58 PM   #8
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If possible, use white PVC DWV plastic pipe where possible.

Plastic pipe will never permeate odor, even in a sewage filled low spot.

DWV pipe, long sweep elbows and fittings are available at plumbing and hardware stores.

Smooth hose adapters to connect the plastic pipe to hose is stocked in most marine stores or online. Do not use barbed hose adapters.
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Old 02-03-2020, 05:16 PM   #9
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Saniflex. Defender.

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Exactly. I shopped other vendors for Saniflex but checked out Defender based on Peggie's advise. Much cheaper.
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Old 02-03-2020, 06:07 PM   #10
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Saniflex is a synthetic rubber. If you cheap out and buy PVC don't be tempted to use heat gun to make hose easier to bend. Gentle heat does make it a little easier, then 10 degrees more and the hose sags into a permanent oblong shape.

Saniflex price per foot is obscene but you get value for the price.
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Old 02-03-2020, 06:38 PM   #11
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$8.49 per foot for premium 1 1/2Ē sanitation hose is obscene??? Not in my book. Replace it once and be done.
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Old 02-03-2020, 06:46 PM   #12
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Trident 101 is about $2 a foot cheaper than 102. The only difference is it's black. It's also not as flexible as SaniFlex, but if you don't have any really tight bends it's fine. Depending on how the old hose is run you might need to cut access holes in the floor to cut zip ties and turn corners through ribs and stringers. I did. I also put the old and new hoses together with a piece of plastic pipe and 3 screws in each side so they didn't come apart in a place with no access. Not the most fun job.
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Old 02-03-2020, 07:29 PM   #13
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If possible, use white PVC DWV plastic pipe where possible.

Plastic pipe will never permeate odor, even in a sewage filled low spot.

DWV pipe, long sweep elbows and fittings are available at plumbing and hardware stores.

Smooth hose adapters to connect the plastic pipe to hose is stocked in most marine stores or online. Do not use barbed hose adapters.


Right on!!!

Least expensive and never, ever stinks. For sweeps, I used those designed for electrical wiring. They offer the least resistance to flow over the plumbing elbows. Also suggest installing at least one clean out. Sure, the terminations will require short lengths of hose measured in inches, not feet.
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Old 02-03-2020, 07:39 PM   #14
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Right on!!!

Least expensive and never, ever stinks. For sweeps, I used those designed for electrical wiring. They offer the least resistance to flow over the plumbing elbows. Also suggest installing at least one clean out. Sure, the terminations will require short lengths of hose measured in inches, not feet.
Using electrical conduit elbows is not necessary. If you shop for DWV (Drain, Waste, Vent) PVC, long sweep elbows are available in several bend radius'.

I would not mix differing pipes and fittings.
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Old 02-03-2020, 08:18 PM   #15
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Saving a $1.50 or even $2 per foot on sanitation hose isn’t where I would try to economize. It is a terrible job that I don’t want to do again. I would pay a premium easily for the best sanitation hose and Peggie says the Saniflex is the best. That is good enough for me.
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Old 02-03-2020, 10:08 PM   #16
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I'll have to disagree, I had to replaced RaritanSaniFlex hose after 7 years. I've replaced it with Poly X Sanitation Hose, with a life time warranty. I can't wait to replace it and send it back.....LOL

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Old 02-04-2020, 01:15 AM   #17
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PVC drain pipe can also be heat bent to exotic shapes if required by the installation. You need a spring inside to prevent collapse. Some brands or styles of pipe seem to tolerate it better than others. The clear PVC from McMaster works very well for this - and, you can see what you had for dinner!
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Old 02-04-2020, 11:20 AM   #18
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Using electrical conduit elbows is not necessary. If you shop for DWV (Drain, Waste, Vent) PVC, long sweep elbows are available in several bend radius'.

I would not mix differing pipes and fittings.



If it works, why not?
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Old 02-04-2020, 02:49 PM   #19
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[/B]


If it works, why not?

Why not do it correctly? There is no saving by using conduit.

And it looks tacky to have grey PVC pipe connected to white DWV pipe.

And it shows lack of pride in workmanship.

And it may be an issue at survey.
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Old 02-04-2020, 03:43 PM   #20
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Hi again Peggie, just wondering if the sanitation hoses are usually kept in place in the inaccessible areas with fasteners or can you normally pull a hose through as you described with the old hose. Just trying to get a better idea of what I am facing. The hoses I can get to will be no problem but I would like to change the ones that I cant see or get to. I really don't want to take the flooring up or cut holes in it. Thanks, Charlie
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