Need advice, not so slow leak in sump

[Lampshade]

As posted earlier, the Orca Reef Glue is amazing. I've used it on a few leaks, some very bad through different tanks and swear by that stuff now. I had my overflow separate from my tank and fixed it in water with the Orca glue and it's held for years now and can handle my overflow completely drained with full tank on the other side. I also fixed a sump leak that was really bad and that's been fine for a couple years now as well, without a drop leaking. It works right in the tank. It's is a bit ugly to work with and you'll have black fingers for a couple days, but it holds together GREAT. Would highly recommend for stuff like this were you need a quick fix before a replacement, but I've come to trust it enough to leave it as the main seal. It bonds to silicone it seems, and without cleaning I've had no problems. Much easier than draining, scraping, polishing and re applying silicone.