TMC toilet is filling the bowl 24/7

LittleSister said:
I'm puzzled as to why you found the anti-siphon a pain.
Click to expand...
To effectively provide the protection it can give an antisyphon will be positioned between the inlet and pump ( or you are relying on the pump internals not to fail). For us this meant our pump struggled to bring water up and over the loop, even with a finger over vent hole. So for us it was a pain and easily managed with a valve in the pipe.

Different solutions work for differing people.
 
As @LittleSister have pointed out you can not put an anti-syphon between pump and inlet. It would suck nothing but air.

IMG_1098.jpeg
I believe this rusty little guiding piece played a big part in my problems.

IMG_1079 – stort.jpeg
These 3 little parts ensured my success. No more water coming in! Unless I flush that is :)
 
elenya said:
To effectively provide the protection it can give an antisyphon will be positioned between the inlet and pump ( or you are relying on the pump internals not to fail).
Click to expand...

No, the anti-syphon won't work between the inlet and pump. It must go between the pump and the toilet, as per the manufacturer's instructions.

You are not trying to stop the water syphoning into the pump, it is not going anywhere from there if you have the anti-syphon in the correct position, you are trying to stop it getting to the toilet, where it can overflow and flood the boat.

elenya said:
For us this meant our pump struggled to bring water up and over the loop, even with a finger over vent hole.
Click to expand...

Of course it will. It will draw air when you pump becasue you had the anti-syphon in the wrong part of the system. The anti-syphon works by closing the valve when the water in the pipe is under pressure, and opening to let air in when it is under a partial vacuum. If it is in the correct position it is under pressure when you are pumping, and has a partial vacuum when you stop. Because you have it in the wrong position your anti-syphon has a partial vacuum when you are pumping and will inevitably draw air in, defeating your pumping effort.

elenya said:
Different solutions work for differing people.
Click to expand...

You only needed a 'solution' because you (a) failed to follow the manufacturer's installation instructions, (b) don't understand what you are doing, and (c) are unwilling to take advice from those who do.

Your solution depends on every user remembering every time to close the ball valve, when you could have the simple automatic system that the various manufacturers recommend and which serves everyone else just fine.
 
Oh dear....

We do appear to throw our toys out of the pram when someone dares to share a comment different to your own.


LittleSister said:
No, the anti-syphon won't work between the inlet and pump. It must go between the pump and the toilet, as per the manufacturer's instructions.

You are not trying to stop the water syphoning into the pump, it is not going anywhere from there if you have the anti-syphon in the correct position, you are trying to stop it getting to the toilet, where it can overflow and flood the boat.



Of course it will. It will draw air when you pump becasue you had the anti-syphon in the wrong part of the system. The anti-syphon works by closing the valve when the water in the pipe is under pressure, and opening to let air in when it is under a partial vacuum. If it is in the correct position it is under pressure when you are pumping, and has a partial vacuum when you stop. Because you have it in the wrong position your anti-syphon has a partial vacuum when you are pumping and will inevitably draw air in, defeating your pumping effort.



You only needed a 'solution' because you (a) failed to follow the manufacturer's installation instructions, (b) don't understand what you are doing, and (c) are unwilling to take advice from those who do.

Your solution depends on every user remembering every time to close the ball valve, when you could have the simple automatic system that the various manufacturers recommend and which serves everyone else just fine.
Click to expand...
Click to expand...
 
rotrax said:
That was my problem too. As pointed out in posts #32/36.

Glad you have fixed it.

If it is like my one, the repair will not last long.
Click to expand...
Did your repair kit have the brass-coated shaft bushing? That seems to be a good upgrade, seeing how corroded the old one was. Perhaps it will last a lot longer :)
 
Karlsenkystfiske said:
And started leaking?


I got this one Service kit TMC elektrisk toalett - Nettbåt AS
Click to expand...

I was in NZ.

My supplier was Burnsco at Petone. They sold their own spares for TMC toilets, had just about everything in stock.

No chance of getting improved stuff from Europe.

I found it was the bush, that was available along with the other bits needed to seal the two chambers for reasonable money.

I hope yours lasts longer than mine-whenever we returned to the boat it was broken. I suspect 7 months out of use did not help.
 
The motor on my TMC head sensed up due to leakage of water and lack of use.

I ended up replacing the duel pump with a diaphragm outlet pump with a seperate sea water flush pump
 
You must log in or register to reply here.

Share this page

Top