Replacing toilet 2005 2100.

OK, so we have a favorite choice.   the ""Aqua-Magic® Style II  Reliable Entry-Level Ceramic RV Toilet""




Ceramic bowl is a plus.     

~30 pounds is ~22 pounds (!) heavier than our current Aqua Magic Style V  is a negative.   

EDIT - Camping world ad says ""The low profile model only 25 lbs."" but UNIT weight 35.2 pounds... (as shipped?) (  I got the other weight from Amazon..I think...)

AND...it has a full size seat. Missed that earlier.  Now to re-fit the old commode and see how much clearance to the cabinet I can use up... another limiting factor..


Main 'sticking' point is the centerline distance from the flange to the back wall.  the Model V needs 7 5/8".  The Model II needs 9 1/2 inches.


Measuring the flange centerline distance to the wall in our camper I get.....9 1/2 inches.    Kinda close to the limit...


and *nowhere* so far have I found a picture of the water hookup on the lowpro model.   

There is a Camping World store ~30 miles north of us, says they have the Model II in stock. https://www.campingworld.com/aqua-magic-style-ii-low-profile-white-14-35652.html 

 May have to go up and check out the water hookup, and see if it is even feasible. The seat area looks to be about the same.  Extra bowl depth would be MOST welcome for my comfort.

I am willing to 'clearance' the wall to accommodate the water hookup, if the bowl has a more favorable design.


Mrs V said she is willing to do a 'high steppin'  motion to use the pedal flush. She just went down to 'try' it figuring the pedal is ~6 inches above the pedestal height.
 I have thought of a few 'hand conversion' ideas that will allow one to stand upright and work the flush by hand, should the pedal be too high.




Another one of interest is the dometic 321.  FULL SIZE SEAT!     37 pounds.....whoa...   adding  around 29 pounds of toilet.   But the full size seat... the install instructions are incomplete https://www.dometic.com/assets/87/98/600346504_78798.pdf  , page 5 , but LOOKS like it needs 10 or 11 inches from the  back wall for the 32x series.....rats.   BUT..the 300 series has a full size seat,  no porcelain but only ~8 pounds.

https://www.amazon.com/Dometic-300-Profile-Toilet-Bone/dp/B00HR2OE4M 

See what tomorrow brings. Both the dometic 321 low pro white ($275) and the thetford model II ($199) are in stock at CW.   That 300 series is looking like a contender, however.




@ LRUCH - Just read your post, indeed we have the gnats also.   What hole did you seal?  I found the only 'leak' to be that valve.   We are in a bit of a time crunch to, with Thanksgiving travel coming soon. Might have to put in the old toilet back in for he weekend.

I can get pics of the back of my toilet if it helps you describe your fix.

NOT ONE WHIFF of black tank odor, and it was full. I am so happy about it. FIRST time in our ownership the faint black tank odor has not been a constant companion.  I drove with the windows open for 25+ miles. HVAC off.    That Thetford V is HISTORY.

Might attempt to fill it up to positively diagnose all the possible 'leak points' beyond the one I found, but time will dictate that. I am just So tickled the smell is gone. I will place it back inside to get some clearance measurements to the cabinet, walls, etc. The Model II is only 2 inches bigger 'front to back' than the model V,  so I am hoping for adequate room. full size toilet seat in the camper.... never thought such a thing would be so exciting.   


Stopped by our local RV center, and managed to score a few minutes with a tech. He advised me to consider staying with Thetford brand, as the water supply line should be very similar, if not identical. He likes the Dometic series, but warned that switching over would likely mean some re-plumbing of the water supply. All his 'best guess' , but I give it value.

So, the Thetford II  Is our 'Great White Hope' (We didnt want bone color.  )

https://www.campingworld.com/aqua-magic-style-ii-low-profile-white-14-35652.html

Here's hoping that the '9.5 inches' of clearance 'flange center to wall' has some wiggle room.  Even the Model V, model that was in there, calls for 11 inches for side clearance, and our 2350 only gives ~8 1/2 to the shower wall/curtain.

Hoping to go up and get one soon as Mrs V comes back from the nail salon.    Going to unpack and test fit CAREFULLY so it looks unused if a return is needed. Hoping not!   

Figured I would add this to my camper improvement thread.     The Rest of the Story (RIP Paul H)  is here-

https://forum.phoenixusarv.com/index.php?topic=3559.msg41134#msg41134

I have attached photos of the back of the base of my toilet.  There are 2 holes visible in one photo.  The large hole is in the floor to a cavity between the black tank and the floor.    It' appears to be somewhat airtight cuz I don't feel cold air flow in the winter or hot air flow in the summer.  It seems to be just a gap between the floor and the tank. (maybe it is connected to the channel of pipes and wires that run the perimeter of the RV?)   When I replace the toilet, and probably the floor as well, this hole needs to be closed. At that time I'll look into filling the hole with better insulation.  For now, I stuffed some non-flammable fiberglass in there because I really can't see what all is in the hole.

However, the small arch hole in the white plastic toilet base is part of the molded design. I suspect it is an opening for a water hose, maybe???   I attempted to fill it with white silicon caulk, but the 1" tall 3/4" wide hole is too big...... so I just covered it with white duct tape.  That is what stopped the odors and gnats.

The second photo shows it all covered in fresh white duct tape.  No way it is a permanent solution, but no more bugs or smells for now.

I have attached photos of the back of the base of my toilet.  There are 2 holes visible in one photo.  The large hole is in the floor to a cavity between the black tank and the floor.    It' appears to be somewhat airtight cuz I don't feel cold air flow in the winter or hot air flow in the summer.  It seems to be just a gap between the floor and the tank. (maybe it is connected to the channel of pipes and wires that run the perimeter of the RV?)   When I replace the toilet, and probably the floor as well, this hole needs to be closed. At that time I'll look into filling the hole with better insulation.  For now, I stuffed some non-flammable fiberglass in there because I really can't see what all is in the hole.

However, the small arch hole in the white plastic toilet base is part of the molded design. I suspect it is an opening for a water hose, maybe???   I attempted to fill it with white silicon caulk, but the 1" tall 3/4" wide hole is too big...... so I just covered it with white duct tape.  That is what stopped the odors and gnats.

The second photo shows it all covered in fresh white duct tape.  No way it is a permanent solution, but no more bugs or smells for now.

That hole in the floor is Phoenix's work, not Thetford's

I looked at the toilet I have, and that arch in the toilet base SHOULD not leak any fumes. It is not part of that large cavity between the seat and base.

 If the ring is sealing, that arch/hole is not an issue.


My 2350 is MUCH different, but I would be very distressed to see such a nasty void there also. Looks like the water supply line is hand-screwed on the bottom? It might need that big a hole for access.

My install was a challenge in the water supply, but is in now and looks/works GREAT. 

If there are any people here that are looking to have a PC built, and getting ideas,  a toilet upgrade would be in order.

The cost isnt that much more for the unit itself, and if done during the initial build, plumbing the water wont be an issue.

The 17 pound 'weight penalty' (in my case)  is a SMALL price to pay for such increased comfort.

The Thetford Model II is 25 pounds for the low pro model, the Model V that I took out is just under 8.