dumping black tanks

[Rifleman1]

I have a 2016 keystone 347 toyhauler and i think i have 2 black tanks and i only have one lever to pull. When i look at the control panel it shows 1 empty and one full. What is the problem?

[notanlines]

Rifleman, unless you have a half bath in the garage (and I don't think there is), you have one black tank and two grey tanks. Yes, the spec's call for one grey at 84 gallons or so, but it is actually two; one in the bathroom and one in the kitchen area. Your electronics area is set up in case there happens to have the half bath. Welcome to the forum, by the way!

[Rifleman1]

Thanks Jim that makes sense.