Which toilet to choose? Dometic 320 or SeaLand 510?

pennyrobbins wrote:
We have a really small camper van and are simply looking for something to use when we're not near civilization. How big are the cassette toilets really? Would something like the ***Link Removed*** be worth getting or is it just junk? We're honestly more concerned about space than comfort at this point.

Hm. That didn't work

We have a really small camper van and are simply looking for something to use when we're not near civilization. How big are the cassette toilets really? Would something like the ***Link Removed*** be worth getting or is it just junk? We're honestly more concerned about space than comfort at this point.

I have the 320 with no problems. Don't know about the other model

310 - plastic, round, 2 parts, inherent flaw - often leaks on the joint.
320 - same thing only elongated.
510 - don't remember, must be same as 310 with the same 2-parts problem, only the upper part is ceramic, Dometic and Sealand is the same brand.

If it's a cabin, you have plenty of space, get all-ceramic one-part Aria Classic: https://janeandjohn.org/pages/potty3.html. It's big (long) but when you build your own shack, this is not an issue.

Or a regular residential toilet, more water but much cheaper.

rr2254545 wrote:
I got the Dometic 310 for the motor home and love it - save $50 and get this one

Thanks for the reply. If I can recall, I believe the 310 isn't an elongated bowl. My preference is elongated, my wife likes the regular one. We have a regular bowl in our travel trailer so I was hoping to get the toilet I want for the cabin :D

Thank you so much for your detailed response. This is exactly what I was trying to figure out :D

I can get the 510 for $340cad, and the 320 is $320cad. For the $20 difference, would you go with the 510?

Old-Biscuit wrote:
Dometic 320
*Right side foot pedal (easy snap in/out water valve)
*1 pint water usage per flush.....rim flush
*toilet bowl seal....easy R/R
*Bowl/base factory sealed



Less parts/easy seal & water valve replacement
But if bowl/base factory seal leaks.....replace complete toilet

Slightly Larger Toilet
22" Depth
19 3/4" Height
14 3/4" Width







Dometic (Sealand) 510
*Left side foot pedal (remove side cover to access water valve--then remove screws to pull water valve)
*<1 pint water usage per flush....standard flush from rear of bowl
*toilet bowl seal.....separate bowl/base to access seal. Adjustment band used to hold the two parts together



More parts/must disassemble to R/R parts
But parts can be replaced vs tossing whole toilet



Slightly smaller...still a full side toiet
20 1/2" Depth
18 3/4" Height
15 1/4" Width

Dometic 320
*Right side foot pedal (easy snap in/out water valve)
*1 pint water usage per flush.....rim flush
*toilet bowl seal....easy R/R
*Bowl/base factory sealed



Less parts/easy seal & water valve replacement
But if bowl/base factory seal leaks.....replace complete toilet

Slightly Larger Toilet
22" Depth
19 3/4" Height
14 3/4" Width







Dometic (Sealand) 510
*Left side foot pedal (remove side cover to access water valve--then remove screws to pull water valve)
*<1 pint water usage per flush....standard flush from rear of bowl
*toilet bowl seal.....separate bowl/base to access seal. Adjustment band used to hold the two parts together



More parts/must disassemble to R/R parts
But parts can be replaced vs tossing whole toilet



Slightly smaller...still a full side toiet
20 1/2" Depth
18 3/4" Height
15 1/4" Width

I got the Dometic 310 for the motor home and love it - save $50 and get this one