best way to attach vinyl tubing to submersiable pump?

[Mandosh]

JL does. they're on the back wall beside all the plumbing parts

[kien]

Or you could try not fitting a hose to your pump and instead use rigid pvc :-)

If you must use vinyl then ya, try a plastic clamp or split the difference and fit the submersible part of the plumbing with ridge pvc then convert it (once the pvc extends out of the water) with a barb to your vinyl hose then you can use a metal clamp.

[mark]

zip-ties. Even used them when replacing ends on garden hoses.