Marine Toilet Not Flushing
Toilet won’t flush, won’t hold vacuum, or keeps running? Here’s what usually fails in Dometic, SeaLand, and Jabsco systems.
Ethan, the owner and mechanic, answers the phone · Open 7 days a week
- Same / next day availability
- On-site & marina service
About This Problem
Marine toilets use pumps, valves, and seals that wear out with use and salt water. Most problems come down to a failed pump, worn valves, or a vacuum leak.
Head won’t flush? Call Ethan and tell him the make. He works on Dometic, SeaLand, and Jabsco.
Call 786-351-5363Most Common Causes
These are the causes we find most often.
Failed pump
The flush or macerator pump burns out or jams.
Duckbill valves and bellows
Worn rubber parts stop the system from holding vacuum.
Vacuum leak
The vacuum pump cycles constantly because air is leaking in.
Water valve
A bad electric water valve stops the bowl from filling.
What We’ve Found on Real Jobs
From Ethan’s job log across South Florida.
Toilet not flushing
Replaced the pump and the toilet was back in action.
Rebuilt toilet system
Rebuilt with new bellows and duckbill valves.
Air leak in toilet system
An air leak in the toilet system repaired along with a livewell and sump pump.
Electric water valve
A bad electric water valve for a toilet replaced.
What You Can Check Before You Call
- Whether you hear the pump run
- Whether the bowl fills with water
- Whether the vacuum pump keeps cycling
When to Call
Call with the brand and what it’s doing. We repair Dometic, SeaLand, and Jabsco systems at your dock.
No call center. No front desk.
When You Call, the Owner Picks Up
Every call goes straight to Ethan, the owner of EG Marine Services and the mechanic who does the work. There’s no receptionist taking a message and no waiting on a callback from someone who’s never seen your boat.
Tell him what’s going on: the alarm on the display, the noise at idle, the engine that won’t turn over. Ethan knows Yamaha, Suzuki, Mercury, and the rest of what runs in South Florida inside and out, so you’ll usually get a straight answer on the first call, whether that’s something you can check yourself or a visit to your dock.
- Straight answers, not a script
- Diagnostic questions answered on the phone
- Honest advice, even when the fix is simple
- The person you talk to is the one who shows up
Ethan
Marine mechanic
Describe what the boat is doing and get a real answer from the mechanic, not a message taker.
Call Ethan: 786-351-5363Open 7 days a week
Get a Marine Toilet & Pump Repair Scheduled
Call Ethan directly786-351-5363Open 7 days a week · No call center or front desk, you talk to the person doing the work
Prefer a free quote?
Leave your number and we’ll call you back.
Frequently Asked Questions
Why does my vacuum toilet pump keep running?
A vacuum leak, usually worn duckbill valves, bellows, or a seal.
Do you replace old toilets?
Yes. Sometimes upgrading to a newer system makes more sense than repairing.
Which brands do you work on?
Dometic, SeaLand, and Jabsco, including vacuum flush systems.