How to Inflate Your Wave SUP to the Right PSI (and Why Over-Inflation Damages It)

The short answer

Inflate your Wave board until the pressure gauge on your pump reads the right pressure for your board. Wave 3.0 boards are designed to be paddled at 18 PSI, and can be taken up to 20 PSI in High Performance Mode for extra rigidity when you're surfing or want maximum glide. Never go beyond 20 PSI — over-inflation can cause structural damage to your board.

Inflated properly, your Wave SUP becomes rigid and stable — that solid, drop-stitch feel that makes an inflatable paddle like a hard board. Get it right and the board tracks straight, stays steady underfoot, and lasts season after season.

Why the right PSI matters

Under-inflated, your board flexes in the middle under your weight. You'll feel it bend, wobble, and drag — slower to paddle, harder to balance, and tougher to keep tracking in a straight line. It also puts uneven stress on the seams.

Over-inflated is the more costly mistake. Pushing past the recommended maximum stresses the seams and the drop-stitch core that gives your board its shape. On a warm day that pressure climbs even higher (more on that below), and the result can be seam or valve damage. It's worth knowing that damage from over-inflation counts as misuse, and isn't covered under your Wave warranty — so a two-minute check of the gauge protects both your board and your cover.

How to inflate your Wave SUP

Your Wave board comes with a high-capacity pump (single- or double-action depending on your model) and a pressure gauge built into it. Keep an eye on that gauge and the rest is easy.

1. Set the valve to inflate mode. Pop the valve cap off and check the pin in the centre of the valve is in the raised (closed) position. That's the setting for inflating. If the pin is pressed down, air will escape as you pump — press and twist it to raise it first.
2. Connect the pump hose and click the lock. Push the hose onto the valve and give it a quarter-turn until it locks, so it can't blow off under pressure.
3. Pump steadily and watch the gauge. The first two-thirds are easy going; the last stretch gets noticeably harder. That resistance is normal — it means you're approaching full pressure. Keep going until the gauge reads 18 PSI (or up to 20 PSI if you want High Performance Mode).
4. Stop at the recommended pressure. Don't go by feel alone — a board can feel firm well before it's at full pressure, and pushing "just a bit more" past the gauge reading is exactly how boards get over-inflated. Let the gauge be your guide.
5. Disconnect and cap off. Unlock the hose and screw the valve cap back on. A quick hiss as you disconnect is normal — the valve seals itself the instant the hose comes away.

Now fit your fin, attach your leash, and you're good to go.

Common mistakes to avoid

• Never use an air compressor or car tyre inflator. They push too much air too fast, can shoot past your maximum PSI in seconds, and may force moisture or debris into the valve. Stick to the Wave pump supplied with your board.
• Don't skip the gauge. Feel is not a reliable measure of pressure. If your pump gauge is ever damaged or lost, replace it before paddling rather than guessing.
• Mind the weather. Air expands as it warms. A board inflated to the correct pressure in cool morning air can climb over its safe range if it's left sitting in direct sun or on hot sand. As Wave's manual notes, extreme conditions can cause over- or under-inflation, so check the gauge periodically through the day — and if you're inflating in the cool with a hot day ahead, stick to 18 PSI rather than topping up to 20.
• Never leave your board in direct sunlight for long periods. Beyond the pressure rise, prolonged sun exposure can bleach the graphics and shorten the life of the PVC. Keep it in the shade between sessions.

Quick reference