We just bought a 2011 BH 3585RL and love it. We camp at a lot of parks that do not have hookups. We also do almost all our cooking outside, so the dishes are washed outside as well. The grey water tank for the kitchen is almost never used, and the bathroom grey water tank needs dumping every 4 days. Does anyone know if the dump cap is left on and the two grey water tank valves are pulled, will the tanks equalize and buy us more time before needing to dump?