
Since it causes about a gallon of water to suddenly go crashing all over your floor/wall, I would say no. There is no way to close it other than to seal it. Actually, not being sarcastic

. Just been cleaning up lots of water lately.
Seriously, there is no O-ring or gasket because it is constructed in acrylic parts and sealed together at the factory. Definitely not supposed to come off. There are openings on either side that have O rings that do come off for cleaning and draining.
This part is acrylic and needs some kind of glue. I can see the stuff they used dried kind of clear and hard as cement. Of course, I want to use something more effective than what they used since it didn't hold up for more than a year.
I've had people recommend LockTite, Gorilla Glue, etc... but I don't know which ones would be safe for my fish and plants.
Any ideas anyone? The company said they'd call back, but of course they haven't.
Alison