Pros: Included with many boards so minimal investment. I did retry it when the board was already at 18 PSI, but really struggled to move the handle. While I gave up at this point, there are people who go doggedly higher. With an additional minute I was at 13 PSI, but was probably doing quarter pumps. I switched to the half-pump method (half strokes putting in half the volume) and with another 50 plumps (2.5 minutes) was at 12 PSI. It took 1.5 minutes for the first 50 strokes to reach 6 PSI, then it started to get a little tough. The name can be confusing – while it is a “high-pressure pump” it is higher-volume/lower-pressure than pump B. This is a squatter, thick-barrel single-action pump designed to put in more volume (2.5 liters per stroke), and is currently included with many inflatable SUPs, though the trend is to switch to the Slim Barrel pump (B) listed below. Prices: $39.99 to $69.99 but comes included with many boards.Specifications: 2500 cubic cm (2.5 liter output per stroke).Pump Brands: Red Paddle Co EZ Pump Std. We have compiled them into an easy-read table at the bottom. While all of the pumps come with pressure gauges, for continuity pressure was checked using the K-Pump Kwik Check gauge. That said, following are our observations on several SUP pumps used with a medium-sized inflatable board – the Red Paddle Venus 10’0″ with a 3.93 inch thickness and 30 inch width, 193 liter air volume. The 2500 cm3 pump will fill out a board faster, but be tougher to reach higher pressures. So, a 2000 cm3 pump will put out less air – and be easier to pump to higher pressures – than a 2500 cm3 pump. If a pump puts out 2 liters and the board is 200 liters, theoretically it would take 100 full strokes to fill the board – we didn’t always see that, though. For example, 2000 cm3 is equal to 2.0 liters. To give a rough factoring, we’ve listed the air volume for the pumps – check on the volume for your pump.The HR valves are on the following inflatable boards that we know of: Red Paddle Co, C4 Waterman, Advanced Elements, AquaGlide, Airis Inflatables, Conquest, BIC. If you purchase an aftermarket pump, please make sure that a) the adaptors that come with it will work with your board or b) that you can get your hands on an adaptor and glue it onto the hose end. The pumps we used all have the Halkey-Roberts (HR) valves and attachments.Larger people may have an easier time reaching higher pressures. I have ranked them by “difficulty” level, but I am a smaller adult at 5’4″.But in no case should you go higher than the manufacturer recommended pressure. Smaller people may get away with 12 PSI and we had one 6’4, 300lb customer fine at 19 PSI. While some boards can be inflated to 25 PSI, for most of us that is overkill.
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