Review on 1 Pack of Quick Dam Flood Barriers by Gabriel Rosenberg

The product works well for draining water, but its design is incredibly stupid. I bought it in the belief and hope that there were two slots to fill at each end - an obvious need for below level slots. I had to divert rainwater that was running down our house causing flooding. I was horrified to see there would be trouble as my gentle slope drained the dam. Oh god, ever. I am writing this while slowly tugging on the sack and emptying it, hoping not to cling to anything by punching a hole in it. It is painful. How could you not think about how the customer will merge it on the runway? I considered putting the fill side on the low level, but that didn't help - don't think the slope fill stood a chance. With TWO fill/drain options, don't even think about using this on uneven ground. my money back for it.