I have been having issues with the set of Blades that came on a boat I recently bought. I watched some videos and decided to tackle the project during the rain showers this week. Turns out the O-ring was not seated on one of the pumps which caused one of the issues. The O-ring is now pinched and I am looking for a replacement. I left a message with PowerPole customer service but figured I would post here to see if there was a more readily available replacement. Thanks!