Why do kayaks have scupper holes?
Scupper plugs will cover the self-bailing drain holes found on SOT kayaks. The purpose of the scupper hole is to allow water that splashes on to the deck to drain back out and not pool underneath the paddler. … Whether you choose a sit-inside or a sit-on-top kayak, you are sure to enjoy paddling.
They actually release water that could into your craft via waves or sloppy paddling, so they are helping to keep you afloat. Don’t worry, these holes at the bottom of your boat won’t leave you sunk. Most kayaks will have about four scupper holes as this is thought to be the safest amount.
Are kayak drain plugs universal?
These plugs ensure that your kayak remains sealed so water doesn’t seep inside. They fit in perfectly and most have a universal fit which ensures that they can be used on many different kayak models.