Black tank full

kid's inheritance

kid's inheritance

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I suspect I know the answer but is there any way of resetting the black tank full light on a Sealine ? The light shows 80% full even after being pumped out.
Already tried
filling with water and repumping out
going for a thrash (good excuse)
adding some gunk that is supposed to break down and remove odours

Other than doing a Dickensian style "lad up a chimney" , I have run out of ideas
TIA
Rob
 
depends on the type of sensor you have but the default is usually full.

as the tank fills magnets or an arm pass over mini reed valves or coils which add resistance .

They can be taken out , possibly only 5 in a line and either replaced or most likely just need a soldering iron touching the old broken solder to rejoin the contact 5 mins max once its removed, 10 mins if you bypass one out of 5/6 sensors.

can you send a photo of the sender (preferably removed but the cap will do as someone will recognise it)
 
Remove the sensor by unclipping the cable and unscrewing it from the side of the black water tank, remove the "sludge", and put it back.

It's not the most pleasant task - a good idea would be to have something to plug the hole in the black water tank whilst the sender is removed.

It's rare for the sensor to actually fail.
 
On our black tank, it's not a float sensor, so no gauge but just a red light. We sometimes get the problem you describe, and it's easy to clear - just removed the sensor from the tank top (plug the hole like FP said) and rinse it under running water. An old scrubbing brush sometimes helps to clean it.

5 minute job, max.
 
Wiggo said:
On our black tank, it's not a float sensor, so no gauge but just a red light. We sometimes get the problem you describe, and it's easy to clear - just removed the sensor from the tank top (plug the hole like FP said) and rinse it under running water. An old scrubbing brush sometimes helps to clean it.

5 minute job, max.
Click to expand...

A tooth brush would sound ideal. Obviously use someone else's not you own, that would be plain stupid !

Henry :)
 
We're straying into "probably best not considered too deeply whilst eating" territory here: suffice to say that I normally use the marina facilities for activities that might result in increased sludge viscosity.

It's the kids that keep cr*pping in the heads :(
 
It's happened a couple of times to us.
On ours, it isn't as bad a job as it sounds (please excuse the pun)
On ours, the sender/sensor is easily unscrewed and I then put it into a plastic bag, take it out of the boat and wash it off with fresh water. I don't think it's ever needed a scrub.
We did put something over the hole when we removed the sender/sensor but it wasn't that pongy anyway.
Maybe because we keep our holding tank well treated and smelling nice using these http://www.leesan.com/index.asp?m=3&cat1=35&cat2=44&p=112&t=Sealand Clean n Green Holding Tank Cleanser (12 sachets)
Just flush them down the toilet after emptying the tank.
 
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