On Sunday, Me, Nick (nIx_tank), and Jesse (Radcat) took a piece of simple extruded acrylic that I picked up from Home Depot many years ago and cut them for baffles for my sump. After a little toying around and a little trial and error, I finally have my sump completed as of last night. On the other hand, I don't have my downdraft skimmer completed. I used two processes to install the baffles, and here is what happened.
Removable Baffles
Marine/Outdoor EMPD Rubber (17 ft) - ~$6 ($5.54 after 20% off from a sale at Lowe's)
I gave the removable baffles a try last night. I ended up taking a dremel tool and having to strip off a little extra acrylic in order to achieve this. It was remotely successful. I had a couple spots where water made it through, and as I had the first section filled up half way, the baffles popped out of place. This is probably due to so much force pushing on one side of the baffle. In the end, I felt that it was safer to silicon the baffles in. Now, if you could manage to fill the sump up without popping the baffles out of place, then this would be a very cheap, effective, and versatile method of placing in baffles.
Pros: Looks great, easy to install, and instantaneous.
Cons: Slightly more expensive than silicon, not as strong, takes time to make sure the baffles fit correctly.
Standard Silicon Baffles
GE Silicon I: Window & Door - $3.97 from Lowe's
Not much to explain here. Put a bead of silicon on each side of the baffles to make them water tight and sealed to the tank walls. The most difficult part is getting any of the baffles that are off the bottom to stay in place.
Pros: Strong. No need to worry about bumping them out of place. Slightly cheaper. Easy to get baffles set in the first time
Cons: Time consuming, messy, difficult to handle, wait period on the silicon drying.
I'll update with pictures later.