Thanks Cecil & Blair for the responses.
I wonder how many years the weighted tubing lasts? If I do bury it I'd want it to have a fairly long service life.
The trencher I'm renting only goes to 30 something inches, IIRC, and I don't believe this would be below the frost line, but I just had an idea.
I've a backhoe. If I dug say a 4ft deep trench out as far as I can reach into the pond and back to where the enclosure will sit, run 4" schedule 40 plastic pipe straight down 4ft (with a long radius 90) then out into the water, I could run the 3 airlines inside the 4" pipe.
I could have this pipe enter the enclosure from the bottom. I also could run an electric heat tape through the pipe for just incase. Obviously the pipe will fill with water, but if my airlines and/or the pipe did freeze up I could plug the heat tape in and thaw it out.
Plus the pipe would make removal of the lines much easier, down the line, if a replacement is needed. I already have the pipe laying around, just would need to buy a heat tape.
Crazy idea? Too complicated, or way overkill?
Here's a pic of what the box and location looks like. Pretend you don't see the duckweed. That's what I do.
