[header] How to patch a leak in an inflatable stand up paddleboard [title] Locate the general area of the leak by ear; place finger if the leak is found. [substeps] Inflate your paddleboard and apply a weight listen for a whistling sound-this is a great way to find the general area of a leak. [title] If the leak is invisible, pinpoint it using soapy water. 
[step] Place a finger on the exact location and dry the area. [substeps] Apply soapy water to the suspected area while applying some weight to your paddleboard.