How To Use the ERS Dual Action Compact SUP Pump

For 2022 / 23 we have changed our to the ERS Compact Pump. Please see the documentation in your SUP manual for new instructions.

The ERS Dual Action Pump is a reliable option when you need to inflate your SUP and don’t mind a warm-up exercise before your paddling session. Its clever 2-way internal valve assembly doubles the speed of inflation by moving air out through the hose on the upstroke as well as the downstroke, allowing it to accomplish the same thing as double-barrel pumps that are twice its size and weight. This guide will show you how to use the ERS Dual Action Pump to inflate your SUP.


IMPORTANT - Do not stand the rolled or folded board up vertically on a hard surface, as this can cause damage to the folded ends of the board if pulled or dragged across a surface, even momentarily. ALWAYS lay the folded board FLAT, not upright, to avoid damage.

ERS boards are equipped with a high quality spring-loaded military inflation valve at the nose or tail of the board. To inflate, first remove the protective valve cover by twisting it counter clockwise.  This will expose the valve stem at the center of the valve assembly. To get familiar with valve operation, push down on the valve stem, turn it clockwise 1/4 turn, and release it.  This will toggle it between the open and closed position. See below to identify the open and closed positions.  ALL INFLATION is done with the valve stem in the CLOSED (UP) position and DEFLATION is done in the OPEN (DOWN) position


This is the correct position for INFLATION as the pump hose will depress the valve enough to allow airflow and it will close instantly to retain air pressure when removed.


Tighten the hose connector until secure, but be careful not to over tighten. The gauge will initially read "0" and will start displaying an accurate reading (within 1PSI) after a minimum amount of pressure is built up in the board.


Push down slightly. The hose pushes the spring on the closed valve to allow it to open for pumping and creates an airtight seal.


A quarter turn engages the pump lock mechanism that keeps the valve open allowing inflation.


This is the fastest way to pump, but the upstroke will start to get difficult at around 10PSI. When the upstroke becomes difficult remove the stopper to switch to single action mode.


The single action mode is best after reaching pressures above 10PSI. Simply remove the stopper, and the pump will only pump on the downstroke, allowing a much easier return to the starting pumping position.


Insert the valve cover to protect the valve/stem and to prevent accidental deflation.



The procedure for deflating your board is similar to the inflation procedure with a few differences. The board valve should be set in the OPEN position which will drain 90% of the air from the board before connecting the pump. The pump should then be used to drain the remaining air from the board before correctly rolling for transport or storage


To begin, push the stem with your thumb to the DOWN (OPEN) position and rotate 1/4 turn to release most of the air. Connect the hose in the same manner as you inflate the board.


Make sure the board valve is in the OPEN position when deflating. Use the pump to remove the remaining air to make the board easier to fold and store.


Fore removing remaining air it is much easier to remove the stop and just use the pump downstroke.


Remove the pump hose and replace the valve cover to protect the valve stem.

Important Safety Information

Proper manual pumping technique uses the entire body.  Initially, it will be easiest to pump using mainly your arms.  As the pressure increases, you'll want to bend and extend your legs with each stroke to make use of your body weight and core muscles. Manual pumping can be tiring, so take regular breaks when needed. After inflation to 15 PSI, carefully disconnect the hose from the valve by grasping the hose end firmly and rotating it counterclockwise until the air pressure ejects it from the valve.  The cap helps prevent air loss or accidental deflation and also protects the valve from debris.

CAUTION:  When removing the hose from the board valve, grasp the hose end FIRMLY to prevent high velocity recoil of the hose, which can cause serious injury.

MAXIMUM AIR PRESSURE: The correct pressure for an ERS board is 15 PSI though it has been designed to handle pressure up to 17PSI though it makes only a little difference in rigidity. The pressure inside the board's air chamber increases with higher temperatures, so the PSI may rise above the starting pressure during use or transport which is why 15PSI is optimal. Likewise, the pressure inside the board may decline in colder weather. If the board becomes overinflated due to increased ambient temperature or inflation error, push down on the valve stem to deflate until you reach the recommended pressure. If the board is underinflated, re-attach the pump and inflate until the desired PSI reading is attained.

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