(1) Before inflating, please make sure the two layers of the evacuation valve are securely closed.
(2) If none of the tests reveals a problem, check to see if the foot pump has been harmed. If the foot pump breaks down, we suggest you use an external air pump to inflate. The external air pump is not included in this product.
The following provides the external air pump's usage instructions: Please double-check that the second layer of the evacuation valve and the inflating valve are both securely closed. The product should then be inflated by connecting the external air pump to the first layer of the evacuation valve.