Instruct: Classify Amazon reviews into positive or negative sentiment
Query: just okay...

Maybe it's just me, but this is the second pump I've bought and neither worked well. First I tried a hand pump and no matter how hard I pumped I was only able to remove about 2 quarts. Using this device I got about 3 quarts out but finally had to just give up. Each time I warmed the oil running the engine but the pumps just aren't strong enough to keep a continuous draw going. Unfortunately I don't have the means to get the container lower than the engine. I'd opt for a larger vaccumm vessel next time.