Just read your post. Have you done this yet?
How has it worked for you?I would be concerned about the weight of the raft being on the two ends only.
I saw a post from someone that built his rafts out of either PVC pipe or air filled sacks with plexiglass rafts, I think. The PVC held the raft above the water line an inch or so, allowing air under the rafts.
Not yet...construction was stalled due to a few weeks of late season rain.
Good point about the structural integrity, although people pick up rafts of mature plants and carry them around all the time (by their two hands). Would be easy enough to add some additional support tabs or something similar.
Yup, I have seem that a lot of you-tube, but I think it's with the 2" foam rafts. I think keeping the raft a little above the water line is a good idea, but I am new at this myself.
I will use one of the two ideas myself.
Averan, did you ever build this system?
I'm in the process of building a hybrid system in my basement for winter and looking at raft designs. Did you go with the lip idea, and have space under the rafts? Pic's would be great if you had them, and any commentary on what is or isn't working out for you would be very much appreciated.
I understand it is called Floating Raft system. However I have been thinking about a fixed height with maybe some 1/4inch plywood painted with a marine based paint or fish safe paint and backed with some 1x2 strips to prevent sagging. I would then use a standing drain pipe to control the height of my water much like you would in a pond. This would allow for plenty of air no foam touching water to create algae.