Are your fresh a grey water level gauges rubbish ?, then this new Mopka sensor may be the answer. đź‘Ť

Two on Tour

Two on Tour

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The sensor works along the lines of their LPG cylinder/tank sensor which I have found to be very accurate

I could not find anybody stocking them in the UK at present, but you can buy them directly from Mopeka's website.

<Broken link removed>


Not what they are designed for, but this guy found it worked on the black tank of his RV

 
Interesting video. Anbody used one yet? Or even tried getting one.
Fitting under my fresh water tank inside would be not practical (impossible without removing tank).
Would it still sense levels if used from top.
 
David and Sally said:

Under the tank using the magnet and some silicone lubricant to ease sending of the level
Also eats batteries.
Click to expand...
Under which rype of tank? Bottle or fixed horizontal.
I use one under my gaslow and another under a calor (works with either butane or propane)
I bought mine over 2 yrs ago (direct from states) and only changed one battery, however, i did change some settings (as advised here).
 
David and Sally said:

Under the tank using the magnet and some silicone lubricant to ease sending of the level
Also eats batteries.
Click to expand...

When I set up the Mopeka sensor on our underslung tank, I found I had to position it about 300mm from the end of the tank to avoid the internal float and arm giving false
readings, plus mine would not give a reading if I used the dielectric silicone grease, but it worked happily without the silicone grease.

I changed the sensor refresh rate from the standard 3.5 seconds to 10.5 seconds and I get 18 months to 2 years out of a battery.
 
the1andonly said:
Would it still sense levels if used from top.
Click to expand...

If the water sensor works on the same principle as their LPG sensor, then no, as the sensor ultrasonics sense the change at the point between the liquid and the air above to measure the liquid height in a tank/cylinder.
 
I don't need a gauge for either as I top fresh water up every morning (if possible) and drain grey at the same time..BUSBY.
 
busby said:
I don't need a gauge for either as I top fresh water up every morning (if possible) and drain grey at the same time..BUSBY.
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Each to their own but I only do it once a week unless I'm going somewhere where I know it's going to be difficult. Great thing about a black tank is once a week is easily enough.

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jongood said:
Each to their own but I only do it once a week unless I'm going somewhere where I know it's going to be difficult. Great thing about a black tank is once a week is easily enough.
Click to expand...
As above

Why do you need to know the level? you just need to empty it regularly.
You will soon learn how long it takes to fill - same with the fresh water, every three /four days should keep it topped up.
 
The gas gauge is so variable in its readings that’s it’s practically useless. Got myself into a flap as it said it was almost empty and discovered it was still half full by the amount I put in. To be fair it did say it was a poor signal and I did remount it after filling. The next reading I noticed was 85% and then it went back to 100% after a few more days use. Sitting at 53% at the moment 🤕
 
Cairngorm said:
The gas gauge is so variable in its readings that’s it’s practically useless. Got myself into a flap as it said it was almost empty and discovered it was still half full by the amount I put in. To be fair it did say it was a poor signal and I did remount it after filling
Click to expand...
Looks like you probably got your answer as to why it was inaccurate in the first place.

Ambient air temperature plays a part in the reading your get from a Mopeka LPG gas sensor as liquid LPG expands and contracts with the changes in temperature.
Yesterday afternoon my gas level reading was 64%, but this morning it's colder and my gas level reading now reads 60% which I think shows that the Mopeka gas sensor is just accurate rather than variable.

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1635924901639.png
 
ours starts to gurgle if its getting full deadly accurate and doesnt need batteries
 
I like the sound of this water sensor: whilst our fresh tank has a gauge on the control panel, the grey tank only has an alarm which is supposed to go off when its (almost?) full. But it doesn't appear to be very reliable because it sometimes goes off when we know the tank is empty and few times we've been caught out with the tank overflowing but have heard nothing from the alarm. Looks like there is just enough space between the bottom of the tank and the polystyrene insulation around it to fit one in (y)

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This one's cheaper and gets good reviews.. If you can believe them 🤔

Screenshot_20220321-115357_Opera.jpg
 
As stealaway says. Why do you need it so accurate. I empty our tanks well before it gets critical, especially when touring. You never know when the next dump off point is. Our meters give an acceptable indication of fullness. That little red light on the cassette freaks me out.
Phil
 
Gaston aires said:
Our meters give an acceptable indication of fullness.
Click to expand...
You assume that everyone has a meter though - which isn't the case. The control panel on our previous MH (Bailey) told us in % how full both the fresh and grey water were - neither were very accurate, but they were enough to have a rough idea. But our Rapido only tells us the % of the fresh water tank, for the grey tank we just have an alarm when its full (in theory at least).

Gaston aires said:
That little red light on the cassette freaks me out.
Click to expand...
Yes me too!
 

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