anyone replaced their Thetford toilet with a 320 elongated Dometic toilet

[IBEW Sparky]

Jim,

Thanks for the heads up On the Reflection 337RLS there doesn’t seem to be any cabinet that would cause interference. There are no doors on the linen cabinet and the sink cabinet is far away.

That's interesting... Our 2019 337RLS has a door on the linen closet.

[Jerryr]

That's interesting... Our 2019 337RLS has a door on the linen closet.

I misspoke My 2017 337 DOES have a door. My trailer is at the storage lot and I didn't remember. Hopefully it wont be an issue

Tomorrow I bring the RV back to the house, the toilet arrives at Home Depot. and barring any unexpected problems I should have the setup installed by Friday. I'll Post pictures.

[Jerryr]

That's interesting... Our 2019 337RLS has a door on the linen closet.

I brought the RV back to the property. Home Depot still doesn’t have the toilet, it should be delivered to the store tomorrow per FedEx.

I measured the bottom of the linen closet door. It’s 31” off the floor so it shouldn’t be a problem.

I have all plumbing parts ready to go. Just waiting for toilet so I can measure and cut the pex and crimp it all together. I’ll use a hose clamp on the soft hose connection which will make removing the pipes an easy task if needed.

I will have a 1/4 turn plastic ball valve to shut of water to toilet and bidet if needed.
I have a sharkbite shutoff to feed the bidet and shut if off it and keep water to toilet

I measured the setback. It’s 10-5/8”. Geotex posted he has 3/4” space with a 11” setback so 10-5/8” should give me 3/8” space behind the toilet.

Here are some pictures of the plumbing mokeup before final pex cutting and crimping.

Parts listing

1/2” blue pex tubing
https://www.lowes.com/pd/SharkBite-1...ipe/1000413609

1/2” pex rings
https://www.lowes.com/pd/SharkBite-2...ing/1000182839

Pex elboow
https://www.lowes.com/pd/SharkBite-1...ing/1000182993

Polymer ball valve
https://www.lowes.com/pd/SharkBite-2...lve/1000183195

Shut off T to bidet
https://www.lowes.com/pd/SharkBite-1...top/5001429173

In-line pex to soft hose adapter
https://www.lowes.com/pd/SharkBite-1...ing/1000182965

Elbow connector pex to toilet
https://www.lowes.com/pd/SharkBite-1...ing/1000182985

[Jerryr]

Dometic 320 and Brondell bidet seat installed this evening.

We already have a Brodell Bidet seat in the 2nd bathroom at the house and cabin so we know how to use it and what to expect.

Here are some pictures I took of the final installation and plumbing. We have about 2” of soft hose coming up from the floor and the rest is pex. All pex connections were done with pex rings. The transition fitting from the soft hose to pex is attached with a hose clamp on the soft hose side.

The 320 barely fits. It has about 1/8” clearance behind it.

I’m very pleased with this setup.

Cost was $293 for the toilet tax included
Plumbing supplies about $50.
Brondell bidet seat $89

[Soundsailor]

Dometic 320 and Brondell bidet seat installed this evening.

We already have a Brodell Bidet seat in the 2nd bathroom at the house and cabin so we know how to use it and what to expect.

Here are some pictures I took of the final installation and plumbing. We have about 2” of soft hose coming up from the floor and the rest is pex. All pex connections were done with pex rings. The transition fitting from the soft hose to pex is attached with a hose clamp on the soft hose side.

The 320 barely fits. It has aboit 1/8” clearance behind it.

I’m very pleased with this setup.

Cost was $293 for the toilet tax included
Plumbing supplies about $50.

Nice job, looks great!

[ForBruce]

guess the trailer got too hot

[Jerryr]

Looking at YouTube postings of people installing a Dometic 320 toilet I came across this one. https://youtu.be/7Px3nJCj_w8

This guy used a sharkbite fitting on a “soft hose”. He thought soft has is pex. Look at video starting from 12 minute mark. Initially it had a major leak, then he forced it on harder and the leak stopped for now.

This is a major leak ready to happen. The leak will likely not be visible since the connection is just below to floor.

[ForBruce]

Looking at YouTube postings of people installing a Dometic 320 toilet I came across this one. https://youtu.be/7Px3nJCj_w8

This guy used a sharkbite fitting on a “soft hose”. He thought soft has is pex. Look at video starting from 12 minute mark. Initially it had a major leak, then he forced it on harder and the leak stopped for now.

This is a major leak ready to happen. The leak will likely not be visible since the connection is just below to floor.

don't want to be negative with this guy but a far a i am concerned all sharkbite fittings are an accident waiting to happen. All they have is an o-ring and a non-pull ring. crimp , solder ,thread but stop with the "HOME OWNERS" type repairs

[Redapple63]

don't want to be negative with this guy but a far a i am concerned all sharkbite fittings are an accident waiting to happen. All they have is an o-ring and a non-pull ring. crimp , solder ,thread but stop with the "HOME OWNERS" type repairs

I think it depends on the application. If done incorrectly, absolutely yes!

I redid all the fittings, valves and hoses on my wh bypass in my prior mh, and unless I wanted to remove the wh to make the pex crimp I did a shark bite. Worked perfectly and was on place with no issue for about 4 years before I sold it.

Must be pex to pex and it will be fine. Pex to braided soft tube, not so much.

[Spartacus]

I replace mine with the 320 with the sprayer.