tubes for a bag - where to buy?

[PaulS]

The surfcaster use to sell square tubes. Check out their site. If not, central vac tubing works and is lite.

[luds]

surfland. pre cut. lightweight and durable. you just need to poke whole in the bottem. they are the exact diameter of the tubes that come in a van staal bag but slightly taller.

[HESH2]

surfcaster has tubes.

[Swimmer]

How about plastic downspouts. Cut to length and then two-part epoxy or rivet together.