I bought this little pump as a $4.99 add-on purchase to an order which included a combo of this same pump and a float switch. The first pump and switch have proven to be strong enough to pump out a 12-foot Portabote 3/4 full of water and then to keep the boat clear of rain water thereafter. I have it set up with a small 12-volt battery and solar charger which allows me to leave it unattended for long periods.So far both pump and switch have proven to be reliable but they're not designed for heavy duty use and I would not think of using them in situations where the vessel would be endangered from pump failure if left unattended for a long period of time or when large volumes of water need to be dealt with routinely. While the pump can clear a significant amount of water quickly, it's really designed for light incidental use. I'm very happy with this purchase because I believe that I'm using the pump and switch as they were intended...in a non-critical situation to handle incidental rainwater and spray. To ask them to do much more could be asking for trouble.
Rating: [5 of 5 Stars!]