Originally Posted by clutch
When I am at a full hookup site I keep them both closed and then dump them about every second or third day. I dump the black first and then the grey for the sink and then the grey for the shower. Our 5er has three tanks.
You should only dump the black tank when it is full..... you want to use the force of the flush to evacuate your black tank of all solid matter... if the tank is not full when you go to dump fill it first with fresh water... this will keep your black tank happy and trouble free for years
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
140 days boondocking in 2016
211/2015, 196/14, 247/13, 193/12