If I put an 8 foot piece of, 4" corrugated drain pipe in a bucket with cement in the bottom, will the drain pipe float straight up, sag down to the bottom or drift around?

If it is double walled plastic, it may float on the surface. There is a lot of bouyancy in those things! Drill holes for air to escape except for the top 4 or 5 rings and it should stay vertical like you want it.

Drill several holes in the rings (except those top few) at the top and bottom of the rings in the vertical position so they fill with water quickly.

EDIT: Loretta, although your post is very clear, I somehow found a way to mis-read it

If you set the length of tubing in about 15-25 pounds of concrete and it is NOT double wall (4" rarely is) it will stay standing upright just fine, yet remain somewhat flexible.

I wish I was not on business travel. I'd take pictures of the 4-inch corrugated pipe floating around my pond.

I'm glad I'm not a gangster. It takes a lot of effort to keep things at the bottom of a pond.

Black corrugated 4-inch pipe floats in water. It takes weight to keep it near the bottom. Drill some holes to attach anchors. Use copper wire, aluminum wire, nylon rope, or polyester rope to tie anchors like bricks, cement blocks, big rocks, or cement-booted former-friends to keep it from floating up.

I'm always amazed at the long-ranging zones of free-floating objects in the pond.

Ken

Thanks for the tip Rainman, that will help for another structure that I'm planning but I was wondering what the pipe would do if only one end was tied down. I was playing around with an idea, I was going to take 9 or ten, 6'-7' pieces of pipe and individually cement one end of each of them into a form about the size of a coffee can. I would then place each pipe a foot or two apart near the bottom (like grass plugs) and if they floated straight up that would be cool, a vertical forest of drain pipe. If they tended to fall to the bottom or drift around then I might place them more on the side of my pond. I hope you can picture what I'm getting at. My drain pipe is single walled.

I was hoping someone may have made a structure that had a loose end of drain pipe and I wondered how it behaves.

Oops, I was typing while you were posting.

I was going to cement the ends into a small plastic paint bucket, will that be enough to hold down 6' of pipe? Will the end float straight up?

I would suggest using around 20-25 pounds of concrete to help it stay in place. A coffee/paint can size is only around 7-9 pounds with the tubing in it.

WOW, that much? I may scrap that idea.

I bought 1/4" nylon rope and some 3/4" PVC pipe, I was going to make stakes out of the pipe and pound them into the clay bottom (or pond side), will that work? I was going to drive the stakes in about 1 foot, drill a hole after pounding and thread the rope through, tie a knot.

Does PVC pipe float too? Making structure isn't as easy as I thought. I have an 18' tall x 18" dia. double walled plastic culvert, if I drill holes in it will it be hard to keep down?

What if I buried the cement paint bucket? Would tethering it to a cement cinder block keep down a 6' piece of corrugated pipe? Would it float straight up? I have no experience with making structure so I could use a little advice(for my fish's sake).

20 pounds of concrete is only 1/4 bag. Burying the base would work, but with the lengths you said, 10', I hope your pond is dry or you can hold your breath a long time!

My pond is almost dry, it was just re-dug and it rained once so far, I can get it down pretty deep. I think each pipe will be 6 or 7 feet long. 1/4 bag doesn't sound bad. Do you think this is something fish would like?

I do think your fish will like them. I would add some 1/2" pvc pipe horizontally in random spaces/lengths also.

Remember, a 20 pound rock is a lot easier to move in water than on dry ground. You may want to use the concrete AND bury them some. No need to go very deep.

Sounds good! Does PVC float too?

Small dia. pvc driven into the pond bottom will work if its not to long (8 feet). Long Black corrugated may bend or sink when algae starts to grow on it. Best advice is to stick with what works from the archive.