Class A Diesel-Gray Tank
Hello everyone: Just looking for opinions on whether you should or should not leave the gray tank open while parked with full service hookups? Thanks, Vikki and Rick
Forum Discussion
I keep the grey 75% open and the black 3.766565% open. Then 4 hours before it is time to go, I close the grey by 47% and open the black by .0008%. When it is time to go, I open both of them then run around the RV singing Dixie for 6 laps. After that, I have perfectly clean black and grey tanks and never use any chemicals.... ever.
