Should i foam it ??

[Carl]

The 52 gal I have I don't believe has baffles in it. I don't believe the 40 gal I took out had baffles either.

garagenc,
the frame I added is has a couple of screws to the stringer then glassed in. The frame that came out looked like someone messed around with it prior to me taking it out. It had some fiberglass on the lower half, but nothing on the upper half, which eventually made the whole thing mush.

Carl