Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lasted about 7 years...then gave my wife a shock!

My wife used this little pump to pump treated water in a 55-gal plastic garbage can into her 75-gal fish tank for her monthly water change procedure. It worked great for the first 7-years! It worked great until last weekend when she reached in to lift the pump out of the almost empty garbage can (all but the last few inches of water had just finished pumping out). She got a jolt when she touched the pump. Obviously, the housing seal must be breached somewhere. There appears to be no damage to the pump housing whatsoever. It still looks almost new! And when I opened the bottom panel...the only panel I could seem to find that would open...there was just a silicon-sealed section that I presume contained the motor and other electrical parts for the pump. There were no obvious breaches of that seal either. So I just have no idea how or why this pump failed. It still runs! But it's too dangerous to use. Gonna buy a new one.