Keeping a Return Pump Line Inside Aquarium

Hello,

I've had my aquarium about a year now, but occasionally I have the (very embarrassing) problem of my return pipe (vinyl tube) falling out of the display aquarium!

Obviously this is very messy, as the pump inside the sump promptly begins to empty the sump onto my carpet. I'm also obviously concerned about the fish when this happens.

So my question is: How do you keep this tube from falling out? I've tried buying suction cups and using these, but the tube just slips right through! There must be an easy way!

Thank you for your help!

 

Pic? And If I understand correctly pvc glue or some hose clamps would prob do the trick
Do you just have straight hose running up and into the tank? If that's the case maybe get a adapter to go into some pvc 90 bends to wrap around the lip of the tank. Then locline into the tank.
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I just used some black zip ties and tied it to the center brace. It took a couple of zip ties, but it worked. Then I just pivot the head of the lock line down a little.

 

You slip the tubing over this and hang it over the side.
Return U-Tubes

 

I would go to home depot and get a nice plastic clamp