Troubleshooting Bad Odors From An RV Toilet

Updated 05/18/2023 | Published 05/17/2023

Products Featured in This Question

Dometic 320 RV Toilet - Standard Height - Elongated Bowl and Seat - White Ceramic

(557)

$407.57

Replacement Flush Ball Seal for Dometic RV Toilet

(75)

$35.95

Dometic 300 RV Toilet - Standard Height - Round Bowl - White Polypropylene

(128)

$206.74

Dometic 300 RV Toilet - Standard Height - Round Bowl - Tan Polypropylene

(128)

$211.68

Valterra RV Toilet Floor Gasket with Hold Down Bolts

(105)

$12.70

Question:

I have a 2020 heartland pioneer qb300, the dometic 300 toilet that is in it emits a bad smell. I ordered the dometic 310 but it doesn’t fit in the same spot. What can I order to put in to replace the 300?

asked by: Jake

Expert Reply:

If an RV toilet is emitting a bad smell that just means the gaskets are failing. You can replace the gasket between the floor and toilet with part # Q23653VP and the flush gasket that holds water in the bowl and prevents odors with part # DOM63FR.

Most toilets require 11" of clearance from the center of the drain back to the wall, except for the 300 series which only requires 8.5". Since you don't have the extra space you would need to stick with a 300 series with either the White # DOM64FR or tan # DOM74FR.

I've attached one of my installation videos below if you'd like some tips on installing your toilet.

expert reply by: Kevin C