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-   -   water level monitoring system (https://www.skoolie.net/forums/f50/water-level-monitoring-system-20570.html)

highspiritsjourney 12-28-2017 04:02 PM

water level monitoring system
 
Hello fellow skoolie family! To monitor my fresh water tank levels I was thinking of using a gauge and sensor (like in the fuel tank) ... will this work? Can I just use a regular fuel tank sensor system (new, of course)? I don't have a black tank and at the moment no grey either so I only need to monitor the fresh water tank & thought it could look cool having an old-style gauge. However, I'm new to allll this but have figured out electrical already so how hard can basic plumbing be :angel::whistling: How complicated would it be to set it up? Capacitor fluid level sensor ring any bells?

Jolly Roger bus 223 12-28-2017 04:43 PM

It is actually called a capacitive fluid level sensor which would do the job while parked and I think the gauge will go crazy while moving.
I have done a lot of fuel and oil type tanks that use all kinds of brands and ideas for that type of sensor and you always have to buy that manufacturers control panel(not a guage) to be able to read that specific sensor's resistance.
What size openings do you have in your tank? Most freshwater tanks only have 1/2"-3/4" openings in them so the idea of using an old school fuel sending unit and guage would require you to make your own hole.
There are options?
I salvaged my tanks from an old coachmen RV and got the controller to go with it for all three tanks. Each tank has a brass stud plastic welded(which is cheap to do yourself)into the tank with a 1/4" stud stuck out for a wire connection at about an inch from the bottom,mid way up,and one about an inch from the top.
Several options and ideas there also.
It works buy sending a low voltage power to the empty stud and as the water touches the other studs it lights up the rest of the level on the control panel so as it loses its connectivity with the full,half full, and empty pins attached to the tanks the lights on the panel drop or raise from empty to full or full to empty.
Lots of ways to go about it and your budget will help you decide?
I have cheap ideas,I have trouble free ideas that cost a little more money and more work.
Good luck

BurlKing 12-28-2017 05:44 PM

something like this.


https://www.garnetinstruments.com/wp...vel-System.png


got the idea from this guy on here named justin, i believe. its a sweet bus and he does great work. cant remember the name of the build right now....

Megs_PB 12-28-2017 06:47 PM

Quote:

Originally Posted by BurlKing (Post 241577)
something like this.


https://www.garnetinstruments.com/wp...vel-System.png


got the idea from this guy on here named justin, i believe. its a sweet bus and he does great work. cant remember the name of the build right now....



Pictured is a SeeLevel gauge. I installed one on our build that monitors voltage as well as fresh, grey, black, & propane levels. Works like a champ!


Sent from my iPhone using Tapatalk

Iceni John 12-28-2017 08:49 PM

I have two 110-gal fresh water tanks, interconnected with a 3/4" pipe. The left tank has a simple sight glass to show the level in both tanks - it's just a length of clear plastic tubing inside a piece of aluminum channel, connected to the tank top and bottom through 1/4" spin-welded fittings. Simple, nothing to go wrong, always works, cheap - what's not to like?!

And in keeping with the KISS theme, my gray tank's level indicator is a 12V Malibu halogen garden light shining against the tank's opposite side so I can easily see the level of gray water inside it. And the poo tank is next to its access door, so there's no difficulty seeing its level.

Just an idea.

John

JDOnTheGo 12-29-2017 04:42 AM

The SeeLevel gauges have an excellent reputation in the RV industry.

The old style fuel tank type sensor would work in fresh water but not in the black tank - too many chunks in there. A newer style capacitance sender would probably work but I haven't seen that used before.

highspiritsjourney 12-29-2017 10:37 AM

Quote:

Originally Posted by JDOnTheGo (Post 241648)
The SeeLevel gauges have an excellent reputation in the RV industry.

The old style fuel tank type sensor would work in fresh water but not in the black tank - too many chunks in there. A newer style capacitance sender would probably work but I haven't seen that used before.

We only have a fresh water tank, and will not be adding a black tank. I checked out the SeeLevel system but thought since I only need one tank monitored it would look cooler to have a gauge as our meter... I found something like this: https://www.westmarine.com/buy/sierra--universal-electric-fuel-gauge-sending-unit-kit--385684?gclid=CjwKCAiA7JfSBRBrEiwA1DWSG-vct6VI2pfCBdWHnDO_IqmdJHhZINxk9vATZC_3f1_hBNJYPfNU IhoC5oEQAvD_BwE ...hopefully the equipment comes with good instructions!

Twigg 01-07-2018 02:03 PM

Quote:

Originally Posted by highspiritsjourney (Post 241697)
We only have a fresh water tank, and will not be adding a black tank. I checked out the SeeLevel system but thought since I only need one tank monitored it would look cooler to have a gauge as our meter... I found something like this: https://www.westmarine.com/buy/sierr...hoC5oEQAvD_BwE ...hopefully the equipment comes with good instructions!

Just be aware that many fuel gauge senders will rust in water where they will not rust when submerged in gasoline.

highspiritsjourney 01-07-2018 02:28 PM

Quote:

Originally Posted by Twigg (Post 243735)
Just be aware that many fuel gauge senders will rust in water where they will not rust when submerged in gasoline.

Aha, thanks that's what I was wondering... do you know of a safe way to coat them?

Twigg 01-07-2018 03:17 PM

Quote:

Originally Posted by highspiritsjourney (Post 243744)
Aha, thanks that's what I was wondering... do you know of a safe way to coat them?

No. I'd use one designed for RV's.

Unless you can find a similar unit designed for water tanks.

bus-bro 01-21-2018 11:29 PM

An air bubbler system would work in a dirty tank. You measure the air pressure it takes to push air out of a pipe that goes down to the bottom of the tank. A simple manometer will record the tank's level. I did this for my grey tank. I have a little air pump, bought from Boeing Surpluds, long since closed (the bastards!), that provides air pressure.

BowserJournal 01-22-2018 01:25 PM

Quote:

Originally Posted by BurlKing (Post 241577)
something like this.


https://www.garnetinstruments.com/wp...vel-System.png


got the idea from this guy on here named justin, i believe. its a sweet bus and he does great work. cant remember the name of the build right now....

I watched a youtube video of someone who used this system and they really liked it.

Stu & Filo. T 01-22-2018 01:38 PM

1 Attachment(s)
I'm using these in my grey & black tanks, you can also order gauges

https://www.amazon.com/KUS-USA-Water...r+level+sensor


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