Review on Enhanced Cleaning Efficiency: Lee's 12-Inch Slim Jr. Ultra Gravel Vacuum Cleaner with Self-Start and Convenient Hose Clip by Susan Zhao

Terrible product. I'd rather buy a pupmp gravel vacuum or an electronic one with C batteries. No matter how hard you pump this vacuum up and down, the water still flows as if you forgot to turn off the faucet at the sink and there's barely a little stream . It had almost no suction, so the dirt at the bottom of the tank just reached the bottom of the tank, contaminating the water. I would invest in a better product next time. I think you get what you pay for.