Sump drilled holes need patching....maybe.

[cudamon]

I'm having problems with leaks coming through two holes in the bottom of the sump along the vertical walls. One of the holes in the return pipe back to the aquarium. The other is a hole no longer in use. I will be trying something this week but wanted to see if anyone had different ideas.

 

[cudamon]

Never mind. I just used a large quantity of aquarium caulking to seal the fittings that went through the sump.