Fresh water gauge

MCS Boat Products sell a very neat analogue gauge based on a pressure transducer. Reasonably cheap and easy to install and calibrate. No connection with the company, just a very satisfied user.
Mike.
 
mikegunn said:
MCS Boat Products sell a very neat analogue gauge based on a pressure transducer. Reasonably cheap and easy to install and calibrate. No connection with the company, just a very satisfied user.
Mike.
Click to expand...

That looks like it might do the job. I take it that it's one size for all and you just need to calibrate the gauge for the size of tank. Would need the inline sensor but there is room for it
 
The sensor can be anywhere between the tank outlet and the pump. It will only give a truly linear response if the tank is symmetrical horizontally. But that goes for most gauges anyway. Its only quirk is that the gauge gets confused when drawing water But it settles down again within a couple of seconds. Incidentally, whilst the transducer needs to be level with the bottom of the tank the readout head may be mounted virtually anywhere.
Mike
 
mikegunn said:
The sensor can be anywhere between the tank outlet and the pump. It will only give a truly linear response if the tank is symmetrical horizontally. But that goes for most gauges anyway. Its only quirk is that the gauge gets confused when drawing water But it settles down again within a couple of seconds. Incidentally, whilst the transducer needs to be level with the bottom of the tank the readout head may be mounted virtually anywhere.
Mike
Click to expand...

Thanks Mike, good to know. On a previous boat I had problems with my gauge in that it stayed at 3/4 full for a long time then just dripped to a 1/4 full. Can I take it that this one is more accurate (except as you say for a few seconds when running water)
Cheers
 
NormanS said:
A sight glass?
Click to expand...

jordanbasset said:
That would be a good idea but the tank is under the forward V berth and it would be a lot of hassle to keep moving the mattresses and bedding to check
Click to expand...

Sight glass doesn't have to be next to the tank - just connected to it by piping. Can put it anywhere as long as it's at the same level.
 
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We have one of these complete with fittings on every tank. Not cheap but it measures fuel level or water level in various tanks at the push of a button. Remarkably accurate.

It's a tiny flexible pipe that runs to each tank and you can put the gauge itself anywhere. Ours is in the galley, but that's only because it's where the previous owner fitted it...

http://www.thetanktender.com
 
The response of the MCS unit is virtually instantaneous. I installed it some four years ago because I found it impossible to gain access to the original float tube device which had been installed in the water tank prior to the deck being fitted. I’ve since replaced the original water tank with tankage of a different height. Re-calibration of the gauge was a very simple matter.
Mike
 
If you want something cheap, easy to install, that will run on batteries and super accurate get yourself one of these (Digiflow 6710M - search on ebay). Only disadvantage you need to remember to zero it when you fill up your tanks. It will then start measuring liters consumed. Its accuracy is simply amazing.
 

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