-Use the precut strips of tape to hold the sheets together and for support while you are gluing. This is much easier if someone helps hold the sheets while you glue.7
After the sump tank” is finished wait about an hour for the Weld-on to harden before you add your baffles, bubble traps, Fuge wall, dividers, ect. I used old CD case and left over scrap acrylic strips for bracings when gluing my dividers
I made my sump with a 3-divider bubble trap between the skimmer and the return pump chambers and a 12 3/4”x 18”x16” fuge. I had some extra PVC sitting around so I made an overflow pipe hoping it will cut down on bubbles and noise from the fuge. And use the left over acrylic pieces to make corner bracing.
After one more hour of curing apply another bead of Weld-on to all the inside seems. This will help to fill any gaps that may have been missed the first time. Remember this is a Sump it doesn’t need to look pretty, just hold water, so gob it on if you like. After you have your sump customized they way you want it let it sit for 24- 48 hrs while it cures (I’m not totally sure curing time on the Weld-on, I had water in my sump 24 hrs after I glued it).
Then fill it up and test for leaks, if you find any, empty the sump dry it off and apply Weld-on where needed, then let it dry and try again. After a few days, weeks, months, or whatever you feel comfortable with of no leaks it’s ready to go! Now that you know the seams don’t leak you can then add bulkheads if you plan on running external pumps, or skimmers.
Hopefully you are happy with your sump and it works as well for you as mine did for me. AND you just saved around $252, so feel free to send some of that green this way. (I know you’re just going to spend it on something else for your tank.) ENJOY YOUR NEW SUMP!
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