SereneLife Compact Digital Air Pump

I’ve been in the market for an electric SUP inflator. I hate feeling too tired, after manually pumping, to actually go out on the water. During Prime Day, this product was on sale. I used it to blow up my SUP on a bachelorette weekend. After 2PSI, this piece of trash was leaking air. I had to grip it at the hot shaft of the hose in order to bring it up to 4psi (15 minutes later). When I moved my hand to take a break and cool off my hand, it wouldn’t hold air again, decreasing it back to 3psi. Mind you, SUPs require a minimum of 10psi. Eventually I switched it out with my $20 electric tire pump (with sup compatible attachments) to blow it up. Yes, that electric tire pressure pump is $20 and it’s gauge is incredibly inaccurate. I filled up with the $20 pump, would turn it off, take off the pump, unplug this from the car, plug in this piece of trash into the car, fasten it into the sup to get a more accurate gauge, quickly unfasten so less air would leak out, and unplug it from the car. This process repeated itself 4 times within the span of 20 minutes. My friends who all used rental SUPs went out without me. By the time my board blew up and i was in the water, they were heading back. This was by far the worst SUP experience I have ever experienced thanks to this piece of trash.The last time I checked, heavy duty electric pumps were made to pump air faster into inflatable objects? I had no idea that an electric pump could make this task even more difficult. This one does.