I trusted the 600 and something positive and I did well!! I can't stand pulling the rope of the pump I have in my well and the noise it made. Now I just press a button and water with the simple garden hose. It would be better if it was an inch but the simple one is fine. I bought the suction hose from einhell ready, with its check valve and the connecting fitting for the water inlet. I haven't made a good connection at the outlet because I used a quick connector that limits the amount of water. I also bought the 4 A batteries and I regret it, I should have preferred the 5 ones. With these, I water in eco mode for about 50 minutes (I pull from a depth of 5 meters and transfer it with a 3/4 hose at a distance of 20 meters). I am thrilled with this pump!!