Finally got the ReefMat installed and also did the gate valve install. Man that was a pain. When I put together the sump baffles, I didn’t account for the corrugated tubing that connects to the drain pipe. Worst material ever… not easy to work with. I had to play around with the tubing to make a perfect cut otherwise it wouldn’t fit. The Reefmat was supposed to be installed front facing but I ended up installing it sideways because it was the only way it’d fit. Will be a little annoying switching out rolls, will have to remove the skimmer cup every time but hopefully upsizing the Reefmat to a 500 instead of the recommended 250, I won’t have to change the roll that often.