Black water tank and gauge - is it full?

[Rick in Canada]

I'm new to the TT world and we just bought our Slingshot 26BH in April. We have been outfour times and absolutley love it. Most trips have been 3-4 days. I notice that the black water tank indicator is always on empty even after 4 days of use. There is only my wife and I using the bathroom - is this normal?
I take it in on August 17th for some regular service and will get them to check, but i'm wondering if anyone has any thoughts or ideas about this or if they have had a similart problem (if it is a problem).

2007 Ford Explorer Sport Trac (V8)
2011 Slingshot 26BH

[Stan]

Welcome to the forum....as you have probably noticed, this is a great place for answers, opinions and friendly people. As far as your black tank gauge goes it all depends on how much you use the toilet. Remember, the shower and sink go into the gray tank. I would think the tank should be reading at least something after 4 days but I would test it again to be sure. It's possible that a wire connection is loose or missing. You can fill it with the black tank flush which takes about 10 minutes. If you still don't get a reading, have the dealer check it out.

[spinella]

not sure if you can see your tanks from under the trailer...if you can check the connections on the side of the tank. i had a loose one and it wouldnt read that level.

[Rick in Canada]

Thanks for the replies. I plan on checking the tank by filling it before i take it for service - I will check under as well as someone elsehad mentioned it could be a loose connection.
i love this form its very informative.