Review on Dolphin Water Pump Replacement Generation by Ashley Gonzalez

Got this pump. Installed - barely water pumped. Use of one or more plastic bottles with a mushroom cap and a neck diameter of 54 mm. Tried using the original bottle cap with a hole in the middle to lower the vials and the rubber grommet didn't go down too far to seal. We tried using rubber bands in the space under the top of the mushroom but there was still an air leak. It took 10 pumps to get 1/2 cup of water (we tested it). We tried covering the test tubes with a plastic bag to cover the mouth/top of the bottle, the cubes almost didn't come out. We tried 3 different bottles and none worked. They sent it back for exchange in case we received a defective one. Let's see how the second one goes. Update: I have a second one and this one works! Apparently the first one is broken. Sort of like "vice versa". But the replacement sent by Revane worked great! Hooked up and tested with all 3 of my 5 gallon bottles. Update after longer use. This pump works great! We use it with 5 gallon bottles in our RV. The trick with this pump is to hold down the big button and the water just flows. Just make sure to let go early enough so you don't overfill your glass!