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Old 02-20-2018, 07:53 PM   #21
scottz
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What is the difference between the Dometic 310 & 320?
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Old 02-20-2018, 07:54 PM   #22
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310 round bowl, 320 elongated
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Old 02-21-2018, 08:21 AM   #23
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Would like to know how many have the Thetford and no problems? We have the Thetford and have our fingers crossed!
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Old 02-21-2018, 08:27 AM   #24
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Our current Thetford is 3 years old and still holding water. The one in our last unit went 2 years before the foot pedal came off, $50 bucks for a new pedal. So when this current one acts up it's into the trash and a Dometic put in it's place.
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Old 02-21-2018, 08:34 AM   #25
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Ours was 3 yrs old when we bought it, no problems but the 320 is much more (man sized)! Best seat in the house!
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Old 02-21-2018, 09:14 AM   #26
CaptnJohn
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My neighbor is a mobile tech. He says Thetford makes more than one model but most builders put the light version in to save weight and $$$. He says the 'lite' version is often seen as a disposable. He said the 320 I installed will generally at most see the valve leak. The valve is a cheap easy fix IF it happens.
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Old 02-21-2018, 10:31 AM   #27
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Are Thetford worked for about 3 mouths and started to leak & not hold water cheep peace of junk! The one in my last fiver did the same thing.

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Old 02-21-2018, 10:47 AM   #28
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I am afraid to comment. We have the original in our Mountaineer and it is 4 years old in July and has 20-35,000 miles on it. Only problem is the valve closes slow, so I lube it up with cooking oil and good to go another several months. Knock on wood.
Say, for those that have had them leak all over, is it the valve sticks open and coninutes to run filling the tank and then the bathroom??? Just curious what to look forward to!!!
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Old 02-21-2018, 12:17 PM   #29
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Quote:
Originally Posted by scottz View Post
What is the difference between the Dometic 310 & 320?
Quote:
Originally Posted by rescue7 View Post
310 round bowl, 320 elongated
The 320 also has a "rim" that the 310 doesn't have.
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Old 02-21-2018, 03:48 PM   #30
BuilderBob
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On mine Tom it was the vacuum breaker on the back side wear the water goes into the bowl ever time you push the peddle down water would squirt out I replaced it and then it
wouldn't hold water at least we did not have a flood in the rig! Some people have good luck with them and some don't. I like my 320 better more room.

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Old 02-21-2018, 06:18 PM   #31
Golfmedik
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Geez, ok, ok just ordered a 320...And I thought all my mods were gonna get me killed by my better half
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Old 02-22-2018, 12:10 AM   #32
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Your better half will actually like this mod. And don't forget to get the one with the sprayer. Beats using a toothbrush to clean the toilet,lol.
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Old 02-22-2018, 12:31 AM   #33
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Your better half will actually like this mod. And don't forget to get the one with the sprayer. Beats using a toothbrush to clean the toilet,lol.
Who's toothbrush do you use?
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Old 02-22-2018, 01:16 AM   #34
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Who's toothbrush do you use?
DW's of couse. But be sure to rinse it afterwards, otherwise it would just be gross.
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Old 02-22-2018, 11:34 AM   #35
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DW's of couse. But be sure to rinse it afterwards, otherwise it would just be gross.
That's hilarious!

By they way, ordered the one without the sprayer, for one, they didn't have one in stock and two, I can plumb it in very easily. Talked to the guys at PPL and said it was easily added, but ended up buying through Amazon as the return would be so much easier if it is broken when it gets here. I believe it is worth the extra $14. Still enjoying this forum even though it costs me money. But it's a wash because I post mods too
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Old 02-22-2018, 02:48 PM   #36
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I ordered one from PPL last night. My wife said to tell you guys to stop it.

(Wait till she sees the bill for the disc brakes; I suspect I'll be living in the Montana)
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Old 02-22-2018, 03:16 PM   #37
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It is not how long a Thetford will last, it is how many cycles it will survive. There are many RV's that are only used several weeks per year and a number of them used much more frequently. For the RV's that are seldom used, the original will last them a lifetime but from the information I have gathered from this forum and my own personal experience, I would estimate that about 2 years of use is an average for the original commode.
This forum is a great source of information, much of it is even useful so keep the useful information coming.
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Old 02-22-2018, 09:32 PM   #38
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Ok. Got a hold of Amazon as they had the one with the sprayer in stock as of today and cancelled the order on the first one and ordered the one with the sprayer. Funny, it will be here two days earlier. Actually I'm hoping they did get the order cancelled so that two of them do not show up at my house.
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Old 02-22-2018, 09:34 PM   #39
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I ordered one from PPL last night. My wife said to tell you guys to stop it.

(Wait till she sees the bill for the disc brakes; I suspect I'll be living in the Montana)
I've warned mine of the associated cost of the disc brake conversion. If we hadn't already had our son's surgery and my MRIs deductibles paid this year, we would already be stopping quicker
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Old 02-23-2018, 07:19 AM   #40
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I've warned mine of the associated cost of the disc brake conversion. If we hadn't already had our son's surgery and my MRIs deductibles paid this year, we would already be stopping quicker
I feel your pain. I just recently had to spend "my disc brake money" on emissions work on my truck.
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