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Old 03-29-2021, 06:42 AM   #1
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What toilet would you chose?

What toilet would you chose? We have a Dometic 310 and the seat area is round not elongated. Makes for a not so usable toilet for a man IMHO. I would like to change it out for the 320 , but our new 8298KS doesn't have enough clearance from the wall to fit. It needs to be 11 inches and we only have 10. So if the 320 doesn't fit what other toilet would you chose, knowing you would want at the very least a 17 to 19 inch tall unit with the elongated seat ? The price range would be $175 to $300.
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Old 03-29-2021, 07:02 AM   #2
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I made the 320 fit. Reworked the water line and made the hole in lower wall bigger to give flex in line. It is tight but no regrets. Good luck in your search.


Enjoy the journey
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Old 03-29-2021, 06:32 PM   #3
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Quote:
Originally Posted by trapper2020 View Post
I made the 320 fit. Reworked the water line and made the hole in lower wall bigger to give flex in line. It is tight but no regrets. Good luck in your search.


Enjoy the journey
Yes I have looked up and down. All the ones that are elongated have to have that 11 inch clearance from the center of the flange hole to the back wall.
Funny , but from what Dometic says the 310 has to have 10 inches. The 310 is what I have now. Yet when I measure it from flange bolts back to the wall it is only 9 1/4 inches. Why would they have install instructions that say 10 inches when 9 1/4 works just fine. Heck I even have about a inch gap between the wall and the toilet itself.
I'm starting to think I may not really need that 11 inches. I'll find out in a couple days anyway.
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Old 03-31-2021, 12:02 AM   #4
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Rolling.... I put a 320 into my coach about 5 years ago. DW and I both very pleased with it. I will measure my flange bolt-wall distance tomorrow AM and advise.
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Old 03-31-2021, 03:03 AM   #5
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Another happy 320 owner here, I think I have a little under 11 inches, the only issue is the lid hits the wall before it hits the build in back stop, it is tight though, any less and the lid would not stay open, and there is not much extra clearance to the wall. Mine is mounted at about a 30 - 40 degree angle to the wall so my clearance may be different than someone with one mounted at a right angle.
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Old 03-31-2021, 11:40 AM   #6
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What toilet would you chose?

Quote:
Originally Posted by Rolling Chaos View Post
What toilet would you chose?.......I would like to change it out for the 320 , but our new 8298KS doesn't have enough clearance from the wall to fit. It needs to be 11 inches and we only have 10.......
Rolling Chaos... I have measurements and pics, and I believe your install will be ok.
First, overview:
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ID:	323279 This shows how my 320 is installed and appears, and how I measured things. Notice there is clearance between the wall and the back of the unit. This allows my raised lid to lean against the wall securely.
Let’s clarify right away, when you talk of “flange bolts”, you’re talking about these, that hold the bowl to the floor, correct?
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Good.
My unit as installed measures 11 inches, maybe a hair over, from the wall to the CL of the flange bolt. Click image for larger version

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BUT... that 11 inch set also includes a gap of about 1”. from back of unit to wall. Click image for larger version

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So, bottom line here is that you’ll need an absolute minimum of 10” or 10-1/8” flange bolt to wall. If you’re that tight, however, you may find yourself with issues of how well the raised seat lid will lean back against the wall. You may need to fiddle with some sort of clip or latch. An easy enough problem to deal with.
Good Luck with it!
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Old 03-31-2021, 11:34 PM   #7
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Quote:
Originally Posted by JFXG View Post
Rolling Chaos... I have measurements and pics, and I believe your install will be ok.
First, overview:
Attachment 323278Attachment 323279 This shows how my 320 is installed and appears, and how I measured things. Notice there is clearance between the wall and the back of the unit. This allows my raised lid to lean against the wall securely.
Let’s clarify right away, when you talk of “flange bolts”, you’re talking about these, that hold the bowl to the floor, correct?
Attachment 323280
Good.
My unit as installed measures 11 inches, maybe a hair over, from the wall to the CL of the flange bolt. Attachment 323283
BUT... that 11 inch set also includes a gap of about 1”. from back of unit to wall. Attachment 323284
So, bottom line here is that you’ll need an absolute minimum of 10” or 10-1/8” flange bolt to wall. If you’re that tight, however, you may find yourself with issues of how well the raised seat lid will lean back against the wall. You may need to fiddle with some sort of clip or latch. An easy enough problem to deal with.
Good Luck with it!
Thank you. I'll know by the end of this day. Figures it'd be April 1st. My luck.
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Old 04-12-2021, 01:22 PM   #8
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OK So here is the UPDATE:
Again I have posted this to another forum as well.

While I thought I would be notching out a section of the wall in order for the 320 to fit. I didn't have to. It fit in just perfect with out any modifications at all. Seems my suspicions were right about Dometics measurements. They are not right. As I said from the start. I only had 9 1/4 inches from the center of the flange to the back wall in the bathroom. By Dometics own documents the 310 toilet I had in place from the factory wouldn't fit. They say it has to be 10 inches. Well it was in and was only 9 1/4 inches from the wall to the center of the flange. It also had 1 inch to spare from the toilets back to the wall. When I sat the 320 in place it fit right over the same flange bolts and just missed the back wall . You can get about 3 sheets of paper through the gap it has along the back wall. So the 320 also fits from the center flange to the back wall in just 9 1/4 inches . The proof is in the fact it went right in with no issues . Just a simple one for one switch. It did take away about an inch in front where the door opens inwards. Still plenty of room to go in and out of the bathroom though. So over all it was a clean simple swap with no alterations. We now have a toilet I can sit on and be comfortable.

So now I know the 8298KS Rockwood does take the Dometic 320. Why they didn't put that in from the start I have no idea. It's in ours now by golly.
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Old 04-12-2021, 06:46 PM   #9
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With as close as it is, my bet is it may not fit in all RV's of the same model due to production variation.
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Old 04-12-2021, 06:55 PM   #10
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Making a small cubby hole in the wall for that would be very easy. I would recommend it for anybody.
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Old 04-13-2021, 06:34 AM   #11
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Quote:
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Making a small cubby hole in the wall for that would be very easy. I would recommend it for anybody.
Yes you are right and it would be easy.

There is nothing back there behind it.
I'm glad I didn't have to do that though.
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Old 04-20-2021, 07:40 PM   #12
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Thanks for this thread. I'm installing my 320 this weekend. I have 10.5" to work with. I'm willing to notch the wall, but sounds like I may not have to!
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Old 04-20-2021, 08:54 PM   #13
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I tried a Dometic 320 and finally got the supplier to take the POS back for full refund. Dometic customer service is a joke. The 320 advertises full bowl sweeping action...ha ha ha. Toilet had the required flow and pressure and would not wet the front of the bowl.

Maybe the older 320s were good, but the current ones are JUNK.

I ordered the parts and repaired my old Thetford. At least it works.

Ken
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Old 04-20-2021, 10:59 PM   #14
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I bought mine in 2018 and it works well for me.
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