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Old 01-11-2004, 05:04 PM   #1
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Toilet Flange

After repairing the floor that was rotted over my black water tank, I'm getting close to reinstalling the toilet.

The flange which protrudes from the blackwater tank is now flush (no pun intended) with the new floor.

My question is... Is this going to be a problem? Should it be raised above the floor? Are there thicker seals to make the connection water tight?

All of you experts in the bathroom department please chime in!
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Old 01-11-2004, 06:43 PM   #2
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Well I just yanked my toilet out last week, putting in new vinyl The flange on mine is screwed down to the plywood, so it sits just on top of the plywood, not sure if this is factory or not. Your flange would need to sit right on the plywood level so you can get the flange bolts in to it. You do have the black tank that is mounted below the floor...

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Old 01-11-2004, 08:00 PM   #3
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I know about the flange for bolting it down. I was talking about the plastic flange that comes out of the tank... as seen below. See how it is flush with the floor?
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Old 01-11-2004, 09:17 PM   #4
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Dunno,
I'll go look tomorrow and take a picture, it is collllllld and dark out there at the moment

Aaron
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Old 01-12-2004, 07:28 AM   #5
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Mine might be different, but...

On my '67 Overlander the floor-top flange screws into the flange on the black tank. The floor-top flange is then affixed to the decking with wood screws. I don't recall any seals/gaskets (if that's what I see in your picture) between the floor-top flange & the tank other than pipe dope on the three-inch flange threads.

Is your floor-top flange screwed into the black tank's flange?

Tom
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Old 01-12-2004, 07:38 AM   #6
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What you see in my picture is the top of the floor flange that protrudes from the black water tank.

There is then a metal flange that screws in to the plywood to bolt the toilet down to.

That black flange is flush to the top of the floor. The toilet has an old rubber ring that sandwiches between the toilet and the flange shown in the picture.

In a home installation, a thick wax ring is used to seal the connection. They come in a few thicknesses to accomodate different fittings. I don't believe the RV style use wax rings. This toilet was in the trailer when I bought it, and it obviously leaked and rotted the floor.

The toilet is in good shape, and is a Thetford Aquamagic Galaxy Starlight.

I've written to Thetford, but haven't gotten a response yet.
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Old 01-12-2004, 07:51 AM   #7
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Sneakinup,
I went and looked early this morning my tank flange is flush or just slightly under the floor level, then you have the big rubber donut and the screw down flange, mine mauy be separated due to rear end separation But the toilet hasn't leaked as best I can tell. A PO had installed a Thetford Bravura on a riser. Not sure what happened to the original. I would like to put in a nice china bowl Sealand, but $$ comes into play.

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Old 01-12-2004, 07:57 AM   #8
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Thanks for going to the toilet for me! LOL

I thought it would be ok being flush, but wasn't sure. I'm going to need a thicker gasket/donut.

Yes, those new toilets are pretty pricey! Best seat in the house. Or as my father always says, "Mention my name and you'll get a good seat." Not really sure what he meant by that.

Thanks.
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Old 01-12-2004, 11:30 AM   #9
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You can have tech questions answerd direct from Thetford and place orders for parts via email

http://www.thetford.com/email.cfm
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Old 01-13-2004, 08:15 AM   #10
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We worked on our toilet and needed a new rubber seal on it, got one from the local plumbing supply house, it was a little thicker.
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Old 01-31-2004, 08:54 AM   #11
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I need to replace original toilet in 1972 Land Yacht 25'. Questions.....

1. How many bolts hold it down and how do you access?

2. What replacement to use with ease of installation the priority?

Thanks in advance,
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Old 01-31-2004, 04:40 PM   #12
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Any help on above post?


Thanks,
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Old 01-31-2004, 06:38 PM   #13
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Push down on the flush lever and there is a bolt there, hold down the lever with a block of wood and the other one is located on the back side through a hole in the rim which has a plug in it, I used a long socket extension to reach the back one and tape everything together so you do not have to reach in the back to retreive your wrenchs I hope you have small hands to get in those places. I have hands that drive glove makers nuts, like 3x palm size with short fingers. The thethford web site has a lot of information on the toilets.
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Old 01-31-2004, 06:39 PM   #14
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George Jr.,

The toilet is bolted to a wooden platform that sits on top of the black tank.
You will see a round access cover under the toilet seat, which must be popped out to gain access to the rear bolt. Reaching around might work as well.
The front bolt can be reached via the area where the pedal is.
Don't forget to disconnect the water supply before yanking on the toilet.
My bolts werre rusted, so was my toilet flange. It took every bit of self control to not just hitch up the trailer and drive it right off the nearest cliff. These toilet bolts are a royal pain in the rear. I used to tinker with Alfa Romeos and British cars. This by far tops every inaccessible bolt I have ever come across. Especially since they were completely rusted to a clump. This is a stupid design, make sure you are relaxed, do some Yoga or something before and after........
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