Wow, that's some bad luck. I'm glad you are OK, though!
When I broke my macerator, the electric valves still worked. I was wondering if I could bypass them and do everything manually, though, so I called Phoenix and spoke to Kermit. He said it would be possible to pull those valves on the black and gray tanks manually but it would be really hard and you could possibly damage the motor in the electric valve system. Besides, I would have to crawl way far underneath to get to one of them. So, basically, is there any way you can at least repair the part that got damaged that affects the electric valves? I hadn't realized it, but it is a separate device from the Sanicon system even though they occupy the same compartment. If you can't and you absolutely have to manually dump before getting somewhere where they can fix things, then, yes, you can pull those valves out yourself if you are strong and desperate enough.
Good luck!
