SeeLevel Tank Monitor on 21RBS

[jtelles3993]

it's a really nice product. even though the high and/or low readings may be off a bit, the filling/emptying readings are much more gradual and provide useful info.

[sam]

[font size="3"][font face="arial"]Here's the SeeLevel tank level monitor installed in the 21RBS.







The power wire is tapped onto the TV Booster supply line in the cabinet. The sensor wire is run through the floor in the cabinet (careful not to drill into the fresh tank  ). The cable is then routed to the three tanks with generous use of zip ties.
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[ammobob]

Finally got my Seelevel monitor installed. Easy enough following Charlie's instructions. I ran new 18 ga wire versus using the existing wiring. Tapped into the power at the light switch, drilled holes through cabinet floor and then floor (sealed holes with rubber grommets to prevent chaffing), grounded to chassis. Taped senders on and filled each tank making sure senders read properly. Everything worked as planned. Sanded tanks, glued senders in and applied 2 coats of undercoating. All looks great and work.

[a href="http://s304.photobucket.com/user/bvabob1/media/Our%20New%20Camper/image_zps8zs3vkhg.jpeg.html"]

[charliem]

Ammobob,

Nice textbook installation. Good job.  Don't forget your keys ?

[ammobob]

Ammobob,

Nice textbook installation. Good job.  Don't forget your keys ?

Thanks. read your instructions 3 time before I even started. Spare set for wife if I am not around.

[daplumbr]

I wish I had read Charlies' (et.al.) instructions 3 times (and actually paid attention). It cost me 2 additional sensors to get a reasonably good install. Anyway, due to the vagaries of sensor placement on the tanks and the shape of the tanks, the monitor readings are nonlinear. So, the scientist in me made graphs of the black and grey tank fills and the fresh tank emptying. Taped on the wall by the monitor, they make a quick assessment of the tanks easy. I also moved the water pump switch from the old monitor to the 709 SeeLevel console (there's a "hidden" blank place on its face) so the install is clean with complete removal of the old monitor. Now if I could just get the camera to use the flash when I need more light in the photo, I'd be all set! 

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And I learned the black tank is 23 gallons to full (28 advertised), the grey tank is 29 gallons to full (32 advertised), and the fresh tank is 32 gallons to empty (38 advertised). 

[otisw]

I ran an experiment with my fresh / gray tanks (and stock sensors) and found similar results with respect to capacity; 27 gallons gray and 32 1/3 fresh tank.  I figured 6 gallons of fresh water was probably in the hot water tank (I didn't try turning on the hot water as I was using the shower to measure).

[ammobob]

I wish I had read Charlies' (et.al.) instructions 3 times (and actually paid attention). It cost me 2 additional sensors to get a reasonably good install. Anyway, due to the vagaries of sensor placement on the tanks and the shape of the tanks, the monitor readings are nonlinear. So, the scientist in me made graphs of the black and grey tank fills and the fresh tank emptying. Taped on the wall by the monitor, they make a quick assessment of the tanks easy. I also moved the water pump switch from the old monitor to the 709 SeeLevel console (there's a "hidden" blank place on its face) so the install is clean with complete removal of the old monitor. Now if I could just get the camera to use the flash when I need more light in the photo, I'd be all set! 



And I learned the black tank is 23 gallons to full (28 advertised), the grey tank is 29 gallons to full (32 advertised), and the fresh tank is 32 gallons to empty (38 advertised). 

[p]you went a bit more scientific then I did. We don't dry camp but do camp in spots with no sewer so my bigger concern was will I get a 100% reading before anything backs-up. The fresh water tank(which we don't use) read 100% at B4 full and is showing 13% at empty though there is water left in tank as it is not fully level in my back yard. Guess I could level it and run the pump and see if it's sucking air.[/p][p]
[/p][p]The gray was filled by sink and black through toilet with water running through city connection. Hit 100% B4 any back-ups. Since I run a honey wagon I wanted to monitor and determine when to dump. If they read 100% and are not full then I will always be safe. I will find out next week with 3 days at Silver Falls SP with no sewer hook-up.[/p][p]
[/p][p]At some point I will get a gallon bucket and verify the accuracy/volume of the black and gray tanks just to know exactly where I am but it's not the most important thing for us right now.
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[charliem]

[font size="3"]So some points on the SeeLevel installations: Your results are very similar to mine. I also plotted curves one gallon at a time for FW and GW. The tank readings are extremely sensitive to leveling, being so wide and shallow, that the trailer must be absolutely level to get the plots. Then they are only as good as your leveling when on the road. That said the SeeLevel is 1000+% better than the OEM supplied 4 LED junk, or in my case, none at all.

If LL is now advertising 38G FW capacity it includes 6G in the WH. That 6 gallons really should not be included since, once filled, it remains in the WH. You cannot access it except by draining the WH. The real usable FW capacity is ~32G minus what is left when the pump begins sucking air. Again, very sensitive to leveling.

I haven't updated my the black tank curve, but I know when it hits 88% I should be emptying it. I have seen it go to 100%,but by then the toilet is burping so I don't let it go that long. You get burping before 100% due to the vent installation (same problem as the gray tank) and the depth of the toilet tail itself. Fortunately it warns you. The gauge allows me to get a really good and full flush using the black tank flush connection.
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