Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 23-11-2020, 14:35   #1
Registered User

Join Date: Nov 2020
Posts: 7
TMC toilet water completely drains out

I have a TMC electric toilet that is about 7 years old. Lately, soon after flushing it starts to make a ‘glug glug’ noise and the water in the bowl completely drains out leaving it empty. Other then that it seems to be working well ‘for now’. Any ideas of where I might be able to look for what this issue may be? Thank you.
seawindsailor is offline   Reply With Quote
Old 23-11-2020, 21:27   #2
Marine Service Provider
 
peghall's Avatar

Join Date: Feb 2011
Posts: 2,391
Re: TMC toilet water completely drains out

A worn out flapper valve may be the culprit. You'll find an exploded drawing and parts list in the owners manual TMC Electric toilet owners manual



--Peggie
__________________
© 2020 Peggie Hall
Specializing in marine sanitation since '87.
Author "The NEW Get Rid of Boat Odors"
peghall is online now   Reply With Quote
Old 23-11-2020, 21:43   #3
Registered User

Join Date: Nov 2020
Posts: 7
Re: TMC toilet water completely drains out

Thank you, that’s a great start :-)
seawindsailor is offline   Reply With Quote
Old 23-11-2020, 21:48   #4
Registered User
 
Uncle Bob's Avatar

Join Date: May 2010
Location: Sydney Australia
Boat: Fisher pilothouse sloop 32'
Posts: 2,125
Re: TMC toilet water completely drains out

Quote:
Originally Posted by seawindsailor View Post
I have a TMC electric toilet that is about 7 years old. Lately, soon after flushing it starts to make a ‘glug glug’ noise and the water in the bowl completely drains out leaving it empty. Other then that it seems to be working well ‘for now’. Any ideas of where I might be able to look for what this issue may be? Thank you.
Hi, what boat do you have and where in relation to the waterline is the toilet fitted?
__________________
Rob aka Uncle Bob Sydney Australia.

Life is 10% the cards you are dealt, 90% how you play em
Uncle Bob is online now   Reply With Quote
Old 23-11-2020, 21:51   #5
Registered User

Join Date: Nov 2020
Posts: 7
Re: TMC toilet water completely drains out

My boat is a Seawind 1160 and the toilet is above the waterline.
seawindsailor is offline   Reply With Quote
Old 23-11-2020, 22:09   #6
Registered User
 
Uncle Bob's Avatar

Join Date: May 2010
Location: Sydney Australia
Boat: Fisher pilothouse sloop 32'
Posts: 2,125
Re: TMC toilet water completely drains out

Quote:
Originally Posted by seawindsailor View Post
My boat is a Seawind 1160 and the toilet is above the waterline.
Nice, as Peg has said, look at the flapper valve, they don't last for ever. Also you could look at installing a short rise in the discharge hose with a vented loop, doesn't need to be more than a few inches higher so that it acts as an "s trap" which prevents all the bowl water from ever completely draining out.
__________________
Rob aka Uncle Bob Sydney Australia.

Life is 10% the cards you are dealt, 90% how you play em
Uncle Bob is online now   Reply With Quote
Old 23-11-2020, 22:16   #7
Registered User

Join Date: Nov 2020
Posts: 7
Re: TMC toilet water completely drains out

Ok great advice. I’ll check the flapper valve (sounds likely it’s the problem). Thanks again :-)
seawindsailor is offline   Reply With Quote
Old 24-11-2020, 11:38   #8
Registered User

Join Date: Apr 2005
Location: ME, TCI, On da boat
Boat: Pearson 323, Tayana V42CC
Posts: 525
Images: 1
Re: TMC toilet water completely drains out

If you have (and should have) vented loops there may be a joker/flapper/duckbill valve in the neck under the cap. They don't last forever.
Scubaseas is offline   Reply With Quote
Old 24-11-2020, 12:57   #9
Registered User

Join Date: Sep 2007
Location: Queensland, Australia
Boat: None at present--between vessels. Ex Piver Loadstar 12.5 metres
Posts: 1,329
Re: TMC toilet water completely drains out

Check the duck-bill valve in your siphon breaker. Chances are it is stuck closed, allowing the discharge hose to siphon out almost all the water from the bowl.
Mike Banks is offline   Reply With Quote
Old 24-11-2020, 13:04   #10
Registered User

Join Date: Nov 2020
Posts: 7
Re: TMC toilet water completely drains out

Quote:
Originally Posted by Scubaseas View Post
If you have (and should have) vented loops there may be a joker/flapper/duckbill valve in the neck under the cap. They don't last forever.


Thank you
seawindsailor is offline   Reply With Quote
Old 24-11-2020, 13:04   #11
Registered User

Join Date: Nov 2020
Posts: 7
Re: TMC toilet water completely drains out

Quote:
Originally Posted by Mike Banks View Post
Check the duck-bill valve in your siphon breaker. Chances are it is stuck closed, allowing the discharge hose to siphon out almost all the water from the bowl.


Ok, will check that too, thanks.
seawindsailor is offline   Reply With Quote
Old 24-11-2020, 16:03   #12
Registered User
 
Oceanride007's Avatar

Join Date: Jun 2013
Location: Up Qld Coast, near Yeppoon.
Boat: Passport 41, Custom Perry in steel.
Posts: 508
Re: TMC toilet water completely drains out

Think #9 has it. In my opinion my toilet is better without flapper/non return valve once you already have a air release device installed, there isn't sufficient room for flapper valve to operate properly any solids would have to be smaller than a pea, and blocks easily.



Another issue to put in your maintenance plan. Just last few days had issue with choked discharge pipe, worked out that scale in pipe had dislodged and got stuck somewhere. Miles from anywhere, I attached a small pump that I have and circulated some acid I had laying about let it soak and eventually restored flow. I would say replace discharge pipe around 4 years.
__________________
Oceanrider.
"The floggings will continue until morale improves"
Oceanride007 is offline   Reply With Quote
Old 24-11-2020, 16:10   #13
Registered User

Join Date: Dec 2014
Posts: 493
Re: TMC toilet water completely drains out

7 years? Could also be calcium carbonate deposits on the flapper valve. Try some vinegar overnight. (The TMC, not you.) These are actually really good loos. IMHO.
But having it above the waterline with a functioning vent loop as described by others is also a good idea.
Another small observation is that leaving a wee in the loo rather than instantly flushing can create problems when it combines with salt water in the plumbing.
billgewater is offline   Reply With Quote
Old 24-11-2020, 16:15   #14
Registered User

Join Date: Nov 2020
Posts: 7
Re: TMC toilet water completely drains out

Quote:
Originally Posted by billgewater View Post
7 years? Could also be calcium carbonate deposits on the flapper valve. Try some vinegar overnight. (The TMC, not you.) These are actually really good loos. IMHO.
But having it above the waterline with a functioning vent loop as described by others is also a good idea.
Another small observation is that leaving a wee in the loo rather than instantly flushing can create problems when it combines with salt water in the plumbing.


Thanks for the tips :-)
seawindsailor is offline   Reply With Quote
Old 25-11-2020, 09:02   #15
Registered User

Join Date: Oct 2013
Posts: 103
Re: TMC toilet water completely drains out

inlet valve on top of the bend stuck closed.


Stuck flapper valve would have the opposite effect - the bowl refilling after pump out.
chasfgr is offline   Reply With Quote
Reply

Tags
oil, water

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
TMC Electric Toilet Pump - Anyone Familiar with these ? charliehows Plumbing Systems and Fixtures 33 11-10-2019 07:34
TMC Electric toilet water level srt Plumbing Systems and Fixtures 17 04-06-2018 17:26
TMC 40 verses TMC 60 Technodrive/Twin disc thaisail Engines and Propulsion Systems 4 16-06-2017 19:58
New TMC Electric Toilet ozmate Plumbing Systems and Fixtures 6 30-09-2013 05:18
TMC standard electric toilet install piper2 Plumbing Systems and Fixtures 5 07-07-2013 20:23

Advertise Here


All times are GMT -7. The time now is 14:37.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.