Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
Will make a dumb comment here. When I had my first sump with dorso overflow I had a similar issue. The return chamber kept running low and had to add more water and adjust my valves to obtain the correct level.
Nope, they were melted for lack of a better term. I would assume the container with rubble was not the right approach. Will have to try again and do something different.