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Originally Posted by Octoman
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QUESTION: If you are putting 3 baffles side by side (for a bubble trap), how do you apply silicone to all three and be able to run your finger down to smooth it out?
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Not to sound flip, but you only need 2 baffles to form a bubble trap. I have never understood why so many people insist on three.
Unless you space them wide apart, you can't use your finger to smooth out a bead on the "inside" side. You can resolve the problem though. Select the most critical baffle. This is usually the one cemented to the bottom of the tank. Seal that on both sides. This will give you water level control in the sump, even if the other baffles come loose.
For the other baffles, you can run a bead of silicone on each glass side on the tank and then push the baffle into them. Use spacers to hold the baffle in place. let the silicone harden. Then apply a bead on the outside edge of the baffle.