Slow Draining Fresh Water Tank
This is really not a new topic, just a fairly old one revisited ...
I was looking for a solution to quickly drain my fresh water tank for sanitizing and found the solution in the archives under this subject title.
"Robert" on this forum and owner of a '96 U320 suggested an easily overlooked simple suggestion which is to open the outside water faucet in the sanitation bay and turning on the water pump. I drained half my tank in about 10 minutes. Thanks Robert! 
I just wanted to add that one extra thing that I did. I connected a water hose via a "water thief" to the faucet and used the drained water to irrigate a near by garden. Especially in this very hot dry summer, your plants and trees will appreciate it.
Topic: Slow Draining Fresh Water Tank