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Topic: Installation of Dometic 320 Toilet (Read 3090 times) previous topic - next topic

Re: Installation of Dometic 320 Toilet

Reply #20 –
Quote from: John Haygarth –
Trent, just a question here, does the toilet fit correctly if the ring is left off ie- sits on tile surface?
John,

Experimented today, and it does.

Talked to Dometic Tech Support. They said the flange should be on top of the tile. The simplest "fix" is if I can rotate the ABS flange so the slots are at the 9:00 and 3:00 position. Will try my Big Daddy screwdriver in the slot and see if I can coax it to rotate; looks like it only has to rotate about 15-20 degrees.

In spite of all the rain we have been having, things look better for this installation hiccup now.

Thanks,

Trent

Re: Installation of Dometic 320 Toilet

Reply #21 –
Trent, if you cannot rotate that flange then just fasten the flange down with a few screws then use 2 #10 or #12 screws with a washer under head to hold toilet in place once you put seal etc on. It will not move and the thing will work.
Johnh

Re: Installation of Dometic 320 Toilet

Reply #22 –
John,
 
The flange rotated like a trooper. Bolted it in place, inserted the two T-bolts, and dry-fitted the toilet. All A-OK!
 
Went to Lowe's earlier to get a stainless 12" hose. Asked for one with two 1/2" ends. He sold me one with a 7/8" end because ("All toilets use a 7/8" fitting"). Will take it back tomorrow and get the one I tried to buy originally.
 
Had one slight hitch. I had purchased four new 2" #12 screws to hold the adapter down (instructions had said at least four, up to eight). When I tried to drill the pilot hole for the one closest to the wall, I hit metal; same thing in the one adjacent to it. Assumed it was probably a square framing tube and decided not to mess with it. Used the four new and two of the old ones to give me six holding it down. It is very solid.
 
Just have to cut the PEX and insert the 1/2" male plug to provide my input. I thought it would be neater if I installed the plug behind the wall so just the short hose shows. Since it is only a plug attached with a screw-on clamp - no PEX crimpers - it should be fairly straight forward, but it might be better to keep the adapters outside of the wall in case of problems. Any thoughts?
 
After this, I will install my third valve while the tanks are dry. Then we add some water, cross our fingers, and turn the water pump on. Will be checking the new bathroom faucet, the toilet, and the new third valve.
 
Thanks for all of the advice,
 
Trent


Re: Installation of Dometic 320 Toilet

Reply #23 –
Well glad that is over and hope it all works or we will all be in the s--t especially you ^.^d  ^.^d
You did say you were a Sanitory Engineer did you not???
JohnH

Re: Installation of Dometic 320 Toilet

Reply #24 –
I just removed the original toilet and installed a new Thetford Aqua Magic STYLE PLUS.

Additionally............. I had the same problem as Trent in that after removing the 8 screws the flange wouldn't budge to allow the bolt holes to be relocated at 9 and 3 o'clock.  What I did was put the toilet back on the flange, tighten up the 4 nuts on the bolts and then twist the entire toilet and the flange along with it.

I had no problem with the height of the tile or the flange itself and the foam Johnny Ring compressed nicely to form a
water tight seal.  I also had the plywood ring which appears to be a spacer that provides a firm surface at the right height
for the flange to sit on when it's screwed down.

Thank y'all for a great thread.

Re: Installation of Dometic 320 Toilet

Reply #25 –
To the best of my recollection, our flange is flush with the tile rather than on top of it or installed on a plywood spacer.  We installed a Dometic 320 to replace the ill advised residential toilet in our coach.  It went fine and is definitely air/water tight as I have first hand experience of what it's like if it's not  :o  There may be a small gap but the sides of the toilet support the weight without trouble and the foam donut is sealed. 

Re: Installation of Dometic 320 Toilet

Reply #26 –
Hi Mark,
  Did your coach come with the residential toilet? What were the big problems?
Raymond

Re: Installation of Dometic 320 Toilet

Reply #27 –
I don't know who installed it.  I highly doubt Foretravel did it as whoever did it used a wax gasket which simply cannot work in the long term in a motorhome (it melts and leaks).  The toilet was an astoundingly heavy Kohler with an extra long bowl that made it somewhat complicated to even pull up your shorts (we have a separate small toilet room).  The biggest problem is that the black tank filled in 3 days versus 2 weeks for the Dometic 320 and our usage.  We eventually got to the point of not flushing for every number 1 which got disgusting quickly.

BUT.  We probably used it incorrectly if you think about it.  The huge water usage of the residential toilet is designed to flush all the solids properly.  Therefore most likely nothing would ever clog if you just left the black tank open.  In that case, it could be a nice upgrade if you're not on the road much.  You would never have to touch the hoses/valves when on hookups.