SmokeyBare said:
What ever you do..... DO NOT OPEN THE VALVE.... Before you have attached to a sewer or a dump station... all hoses in Place... No Better way to "Make Your Day" than to find the valve was open... before you Un-Capped to connect the sewer hose... Oh Yuck...
That's why I got the Valterra Twist On valve. It attaches at the end of the pipe. After you get everything hooked up, pull the valve. Anything that was left in the pipe will go safely down the hose.
As far as black tank dumping and the San-T-Flush, I just finished dumping my tank a few minutes ago. Here's the procedure I use.
1. Close gray tank valves.
2. Attach black hose and start water running through San-T-Flush.
3. Open black tank valve.
4. When water is 'relatively' clear (as seen through clear elbow), close black tank valve.
5. Let San-T-Flush run for 10 minutes, then open valve again. Your time may vary based on tank size. Best to experiment with one person monitoring toilet inside to get the best time.
6. Repeat steps 4 and 5 once more.
7. Close black tank valve, turn off and disconnect San-T-Flush, reopen gray tank valves.
We've been fulltiming in our rig since April 06 and the monitor still shows the black as empty after we dump and flush. Wish we could say the same about the gray tanks.