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Old 01-11-2016, 12:02 PM   #1
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Macerator Hose Failure DIY Repair

Mascerator hose fix.
Those of you with the early 2016 models that have the Sani-Con Mascerator already know there is an identified problem with the method of plumbing regarding the flexible 1 1/2" hose. When emptying the waste tanks the length of hose in the wet bay expands and begins thrashing around as soon as the Mascerator pump is turned on. This can result in damage (cutting) to the hose which in turn sprays a poopoo/peepee cocktail inside your wet bay. I know this first hand.

After reporting this to Entegra I was informed they were aware of the problem and were working on a fix. In the mean time they asked me to use the slinky until they figured it out. After using the slinky one time I knew that wasn't going to work for me since each time you use it you have to lay on your back and crawl partially under the motor home to attach it.

A couple of weeks ago I received my repair kit from Entegra with instructions to take it to a repair facility. I live in the middle of the desert right next to nowhere and don't have a facility nearby, so decided to tackle it myself.

Took the parts out to the motorhome to begin and realized right away this was going to be a very difficult fix for my level of skills. There is very little room in the wet bay and there were several parts that needed to be installed including a blade valve that would allow us to isolate the hose from the the pump in case we ever had another hose failure. That valve is a good idea but requires the addition of two pieces of rubber hose and 4 hose clamps. I tried to dry fit the parts and discovered that the motor discharge port and the hole that goes into the hose storage bay are offset so it would require forcing the setup to "bend" to fit placing constant stress on some of the parts.

I wasn't real comfortable with this setup so began designing a different plan. I went to my local irrigation/plumbing supply store and began assembling what I needed. The parts list is:
Everything is inch and a half
1-4" nipple
1-8" nipple
1-flexible stainless water connector (Falcon Stainless #swc-112)
1-threaded/threaded elbow

Total cost was less than $40

If you look at the photos, you can see how they go together.

Remove the old hose by unscrewing it from the motor. Pass it through the port into the hose storage bay. Install the 4" nipple with Teflon tape into the motor discharge port and tighten. Add the 8" nipple to one end of the flexible pipe. No tape is necessary as there are rubber gaskets in each end, just don't over tighten. Insert the flexible pipe/nipple combo into the wet bay sticking the 8" nipple end through the port into the hose bay. Then screw the flexible hose end onto the nipple you installed in the motor port.

The 8" nipple should now protrude into the hose bay about 2-3". Teflon tape the nipple and screw on the elbow. You can now screw the hose into the elbow and your repair is finished. This is not a difficult fix and can be accomplished in an hour or two.

I went a step further and added cam lock fittings for easy hose replacement. I even added a cam lock fitting to the grey plastic head end to make it easier to add an extra length of hose for those rv campgrounds that place the sewer drain more than 20' from the motorhome. I made some adapters to fit both a 3" or 4" threaded drain (see photo). By putting the cam lock on the grey head I can also pass the hose through the large hole in the hose bay then down to the drain in case I want to leave the hose out for a couple of days but can still lock the hose bay door so it won't flap in the wind.

I'm not saying this is a better fix than what Entegra recommends and I understand they won't warranty this fix but I personally have more faith in my design. I just read that G&J have already had a failure of the repair.

Sorry the post is so long but hope it helps someone,

Mallory Willis
2016 44B AnthemClick image for larger version

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Old 01-11-2016, 12:12 PM   #2
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Good information! I have nor received my retrofit kit yet but when I do, I'll definitely check the install for alignment and stress points. Sewer issues are a sensitive area with me... can't be too secure!
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Old 01-11-2016, 01:24 PM   #3
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Have not received my kit yet. But that looks like a good fix without using hose clamps that always loosen up.
Where do you get the Cam Lock fittings?
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Old 01-11-2016, 02:14 PM   #4
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That repair looks great and easy to do.. Might want to forward that on to Entegra Engineering. It wouldn't be the first time an owner has come up with a better fix. Buying the parts in bulk would really bring the price down for Entegra.
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Old 01-11-2016, 09:08 PM   #5
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The cam locks are available at any good irrigation or plumbing supply store especially if they deal with agriculture. If you don't have one of those Amazon has plenty.

Mallory Willis
2016 44B Anthem
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Old 01-12-2016, 06:16 AM   #6
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My old style gravity dump is looking better all the time. Being a boater for 30 years, I never really cared for macerators.
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Old 01-12-2016, 10:46 AM   #7
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My prior motorhome came with a Mascerator and I liked it mainly so I wouldn't have to deal with the slinky hose but it was pretty slow. If my tanks were full it might take as much as 15 minutes to empty. If I was at a community dump this could become uncomfortable as the line of rv's and trailers stacked up behind me. This new Turbo Sani-Con is a game changer. It can empty 40 gallons of waste in 50 seconds which is pretty darn quick in my book.
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Old 01-22-2016, 12:06 PM   #8
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Video of repair

Hi Mallory

Now that's what I call a proper repair, here's a video of the repair I carried out but your repair is far far superior. I will ask Entegra when i take it back to the factory to fit a system similar to the one you have fitted.

here's the link for the video: https://youtu.be/Zq_fFeVrTdc
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Old 01-22-2016, 02:03 PM   #9
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Repair looks good and solid. Hopefully Entegra's modification is just as good.

After looking at some video and pictures of the macerator hose it looks as though the hose is not very long. How long is the hose? I've been in some campgrounds were I had to add sections to my stinky slinky to dump. Will I need to add sections to the macerator hose? And how much? Is this something easy to do?

Thanks.....
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Old 01-22-2016, 02:40 PM   #10
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G,
What happened to you was the main reason I wasn't satisfied with the fix Entegra provided. There were just too many points of potential failure. I'm sorry you had to disassemble the bay to repair the mess. I was able to do all the modifications without removing any of the surrounding stuff. It looks like what you did will be adequate but who knows.

Flans,
The hose that comes with your motorhome will stretch to about 20'. Like you I have been at some parks where the dump is more than that and I had to move the motorhome or wait until the next stop. If you will look at the photos in the first post, you will see how I dealt with it, I can now reach 40' which should be adequate for any park. It's a pretty easy fix if you add a female cam lock fitting to the end of your hose where the grey head is located. You will then need to add a male cam lock to the grey head thingy. You will also need to do the same to the extra length of hose (see photos above).

Hope this helps. None of us likes playing in our own poo, right G?

Mallory Willis
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Old 01-22-2016, 03:29 PM   #11
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I have a late 2016 with the new and improved hose connection. However the large 6" hole the 1 1/2" abs pipe enters the storage bin for the macerator hose has been cut with tin snips leaving a jagged edge. As the hose settles during travel it will ride against the rough edge and will most likely create some new pin holes. My attempt to split a piece of rubber hose to cover it has covered some and if my arm was 7" longer I could cover the entire edge. Duct tape will be the next try.
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Old 01-23-2016, 09:24 PM   #12
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Thank you all for the great info. We will take delivery of our 2016 Anthem 44A at Lazy Days Tucson in about a month. Will definitely check this issue during PDI. Has anyone used a slinky and the gravity method?? I'm partial to simplicity with fewer moving parts. Thanks
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Old 01-23-2016, 10:35 PM   #13
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Lots of luck hooking up the slinky. Hope you are on concrete and no rain or snow. You have to lay on your back and crawl under the wet bay to hook it up. Something my old back doesn't like.

Mallory
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Old 01-23-2016, 11:53 PM   #14
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Good to know. Thanks
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