Originally Posted by Tbar
I have some 10' sections of 4" PVC pipe left over from another project that I am thinking of making into fish structures.

My question is if I weight the bottom and cap the top end to leave 1-2' of trapped air(drilled holes & tubing below that) will this provide enough buoyancy to keep it upright?

[Linked Image from i.ibb.co]

Yes

Pics from 2015, and they're still doing their job. 2 bottom floating trees, and the beginning of X frame bottom cover.

[Linked Image from forums.pondboss.com]

Detailed view of how I anchor them. It takes very little anchor weight if the holes are drilled at the correct distance from the top cap. I would drill 18" to 2' down, then redrill another hole above those(if needed) to get the buoyancy correct. The holes for the "limbs" should be loose, or the trees won't sink correctly.
[Linked Image from forums.pondboss.com]
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Last edited by FireIsHot; 04/16/21 04:48 PM.
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