Review on 💦 YOMYM Water Bottle Pump: USB Rechargeable Electric Dispenser for 5 Gallon Bottles - Portable & Efficient! by Alan Pfeiffer

Works great. I like the small size compared to the last one I had. I use it during water changes to pump water into my tank from standard 5 gallon jugs. It's great for that. Not too fast to disturb my sandy bottom, but fast enough that I don't have to painfully wait. It's also powerful enough to push water from a jug on the floor a few feet up and through the top of my tank (via a hose attached to the pump outlet and angled up into the tank). This is important because no one wants to lift these things onto a chair or something after everyone has already dragged them into the tank area. Cons: It doesn't attach to the bottle like a cap. any kind of pressure like my last one. It literally sits on top of the bottle and can slip and fall (and it does every time I use it).