The blow off valve makes pumping an almost completely worry free process as there is no chance you can over inflate and damage your board. Currently we stock the K-Air II’s which come preset with 15PSI and 18PSI blow off valves. K-Air II’s with 20PSI and 25PSI blow off valves are in the works and should be ready some time this summer.
So if you are using the Schrader adaptor or have the device fitted to a K-Pump, you can pump away until you hear the blow off valve bleeding off the excess pressure. You’ve reached your desired pressure without needing to stop and check with the K-Pump Kwik Check Pressure Gauge.