I recently purchased an Avast Marine Calcium Reactor and it is leaking at the recirculation pump (already emailed company awaiting reply). I do not know what these unions are called and have no clue how to stop the leak. The internal O ring looks perfect no blemishes and it is on a level surface. Its not threaded so I don't think I can use paste and am at a loss. I can't run the reactor in the sump as I have no room. Id appreciate any ideas hopefully someone dealt with this before.



