Can Flush Ball be Replaced on a Dometic 310 RV Toilet
Updated 11/17/2025 | Published 12/15/2024
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Question:
Need replacement toilet ball valve for a Dometic 310 I dont see it on your web page. Thank you
asked by: Scott A
Expert Reply:
Hey Scott, thanks for reaching out!
The Dometic 310 toilets unfortunately don't have a way to replace the flush ball so you'll need to either replace your toilet with another 310, which we have in both Tan Ceramic # DOM37FR and White Ceramic # DOM57FR, or if you have an 11" rough-in you can use the Dometic 510 # DOM29FR instead because it has a replacement flush ball # DOM68FR if you need to replace it at a later point in time.
The rough-in measurement is from the mounting bolts for the toilet to the wall where the back of the toilet butts up against the wall in the bathroom.
Product Page this Question was Asked From
Dometic 310 RV Toilet - Standard Height - Round Bowl - Slow Close Lid - Tan Ceramic
- RV Toilets
- Standard Height
- Round
- Slow Close Lid
- 10 Inch Rough-In
- Gravity Flush Toilet
- 360 Swirl - Better
- Ceramic and Plastic
- Tan
- Dometic
more information >
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Jon G.
11/17/2025
Hey Scott, how did things go with replacing your Dometic 310 toilet? Did one of the options like the 510 model end up being a good fit for your setup? Your update could make it easier for others facing the same issue.