Gravel Vacuum help please
I need help to try and find a gravel vacuum that has some kind of cover to keep gravel from getting through. I have tried a few things, but they have serious issues. Using a pantyhose or filter bag on the end with rubber band keeps larger detritus from getting sucked out. Without it, I am plagued by gravel going up and jamming the valve. A larger vacuum just sucks out the gravel faster, and takes out so much water I can't get anything clean. I've been having this frustrating issue for about two years, and its driving me crazy.
Is there such a gravel vacuum on the market? I know I've seen one somewhere, but an online search brings up nothing for me.
Any help appreciated.
2 10 gallon tanks, 1 20 gallon tank, 1 Fluval Edge, 1 29 gallon tank, and one backyard pond.