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Old 29-09-2013, 00:55   #1
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New TMC Electric Toilet

We just installed a new TMC Electric Toilet but we have a problem with it and cant work out how to fix it.

The problem is that not enough water comes into the bowl, just a trickle.

Has anyone had this problem and might know how to fix it.

Appreciate your input
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Old 29-09-2013, 03:38   #2
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Re: NEW TMC ELECTRIC TOILET

Hi Ozmate

We have two of these units on our charter boat. They are an excellent choice.

I assume the intake pipework is the correct size, 3/4" to 1" (19mm to 25mm). They pump more water than a Jabsco.
Seeing that your toilet is new, I would be looking at the intake pipework or skin fittings & valves for restrictions or kinks. Failing that I would check the water intake pump impeller. These toilets usually pump lots of water!

Another issue may be voltage drop not supplying a full 12 volts to the pump. They also suck a few amps, 20 to 25 while running if my memory serves me correctly.
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Old 29-09-2013, 06:14   #3
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Re: New TMC Electric Toilet

Did you see this discussion?
TMC Electric Toilet Pump - Anyone Familiar with these ?
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Old 29-09-2013, 20:16   #4
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Re: New TMC Electric Toilet

Are you using a vented loop for the seawater in? A vented loop needs to be fitted between the pump and the bowl, not between the thru-hull/valve and the pump.

As it is designed to suck air, if it is mounted before the pump it could give the symptoms you describe.
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Old 30-09-2013, 06:14   #5
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Re: NEW TMC ELECTRIC TOILET

Quote:
Originally Posted by 40 South View Post
Hi Ozmate

We have two of these units on our charter boat. They are an excellent choice.

I assume the intake pipework is the correct size, 3/4" to 1" (19mm to 25mm). They pump more water than a Jabsco.
Seeing that your toilet is new, I would be looking at the intake pipework or skin fittings & valves for restrictions or kinks. Failing that I would check the water intake pump impeller. These toilets usually pump lots of water!

Another issue may be voltage drop not supplying a full 12 volts to the pump. They also suck a few amps, 20 to 25 while running if my memory serves me correctly.

Thanks very much 40 South for your reply,we checked no kinks, voltage is fine, will check further including blockages when we stop for a few days in southport... cheers Ines
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Old 30-09-2013, 06:16   #6
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Re: New TMC Electric Toilet

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Originally Posted by GordMay View Post
Thanks very much GordMay for your reply, I did check that thread but his problem is a bit different to ours

Cheers Ines
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Old 30-09-2013, 06:18   #7
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Re: New TMC Electric Toilet

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Originally Posted by Wanderlust View Post
Are you using a vented loop for the seawater in? A vented loop needs to be fitted between the pump and the bowl, not between the thru-hull/valve and the pump.

As it is designed to suck air, if it is mounted before the pump it could give the symptoms you describe.
thanks Steve for your reply, I just woke hubbie to ask him about this and he mumble something so I am not sure if he was awake or dreaming will ask him again in the morning. will check further when we stop at southport in the next couple of days.

Cheers Ines
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