The big box stores carry a variety, sure, but won't the cheap stuff collapse
under suction?

Use hard pipe where you can, braided flex tubing, clear with threads within
the rubber/plastic like material, where you have to have flex. Under water
we've had no trouble with build up. Out of the pond if you can't bury it,
cover it with the foam pipe insulation tubes. ~ jan


~Power to the Porg, Flow On!~