The lack of pressure buildup is caused by a lack of lubricant in the pump or unevenly distributed lubricant. If the pump won't build pressure all you need to do is add some sort of lubricant, like Vaseline. Unscrew the top of the pump and add a glob of lubricant to the cylindrical piece on the inside. Then screw the pump top back on and rotate the handles to get it evenly coated. Your pump should be fully functioning after that!
How durable is an iSUP?
Can rocks damage an inflatable SUP?
Are inflatable SUPs good for yoga?
Is it single chamber or are there multiple air sections?
Does it come with a paddle?
Is there a d-ring on the back for a leash?
Does it come with a leash?
Is there an option to buy a shorter center fin?
Can you attach a bungee to the board to store items during transport?
Can you attach a GoPro mount?
Can you add a seat to the board?
How do I inflate my SUP?
How long does the iSUP take to inflate?
What are the recommended and max PSI for the board?
What kind of pump options are there?
What kind of valve is on the board?
Can I use an electric pump with this board?
How do I install the pump gauge?
My gauge won't register, is it broken?
How do I secure the pump nozzle? Do I have the wrong one?
How long can I keep my board inflated?
What is the best way to deflate and roll up the board?
What PSI do I inflate my board to?
How do I install the center fin?
Does the board come with a warranty?