Review on Amarine Made 12v Water Pressure Diaphragm Pump: High-flow, Versatile for Caravan/RV/Boat/Marine Applications by Tommy Russo

I use this pump to pump about 12 feet out of barrels through a 5/8 inch garden hose, I know it's not recommended but as long as it works after 100 feet of 1/2 inch garden hose for watering plants throughout my yard. It generates LARGE pressure and at least the volume listed, and will even push through a 100ft hose. Impressive performance. Fairly quiet and no problem when it runs dry. It WILL get hot if you run it dry but I think that's normal for the diaphragm type. Just don't let it run dry. I switched to this from a 3 GPM pump and find it a bit overpowered. However, it's great for removing dirt from your car or truck. Fully recommended.