Pool Air Pillows vs. Water Tubes: What’s the Difference?

When it comes to winterizing your pool, two common tools often come up: pool air pillows and water tubes. At first glance, they might seem similar, but they serve very different purposes. Choosing the right one can save you time, money, and frustration when spring rolls around.

What Is a Pool Air Pillow?

A pool air pillow is a large inflatable cushion placed under your winter pool cover, usually in the center of an above-ground pool. It serves multiple purposes:

• Helps reduce pressure from ice on the pool walls.

• Keeps water and debris from collecting in the center.

• Makes draining off water in spring easier.

These are essential for above-ground pools because they help protect the structure from ice expansion.

What Are Water Tubes?

Water tubes are long vinyl bags filled with water and placed around the edges of an in-ground pool cover. Their main job is to hold the cover securely in place. Unlike air pillows, they do not float or go in the center of the pool. Their role is simple:

• Weigh down the cover to prevent wind from lifting it.

• Help keep debris out by holding the edges tight.

• Reduce chances of the cover slipping into the pool.

Key Differences Between Air Pillows and Water Tubes

Placement and Function

• Air Pillows: Go in the middle of the pool and float under the cover.

• Water Tubes: Line the edges of the pool and stay on the deck or coping.

Type of Pool

• Air Pillows: Best for above-ground pools.

• Water Tubes: Commonly used for in-ground pools.

Ice Pressure Protection

• Air Pillows: Reduce damage by relieving ice pressure.

• Water Tubes: Do not help with ice pressure.

Installation

• Air Pillows: Inflate and tie off before centering under the cover.

• Water Tubes: Fill with water and lay around the edges, overlapping corners for better hold.

Can You Use Both Together?

Yes, in some cases. If you have an above-ground pool and want extra hold around the edges, you can pair water tubes with an air pillow. Just remember, they serve different roles and should not replace each other.

How to Choose the Right One for Your Pool

Ask yourself the following:

• Is your pool above-ground or in-ground? Use an air pillow for above-ground. Water tubes are for in-ground.

• Do you deal with harsh winters? Air pillows are more useful in areas with heavy snow and ice.

• Is wind a problem in your area? Water tubes help hold covers down better than air pillows alone.

Quick Tips for Setup

• Inflate air pillows fully, but not to the point of being rock hard.

• Tie pillows securely to the sides using grommets.

• Fill water tubes only three-quarters full to allow room for freezing.

• Never use bricks or random heavy objects instead. They can tear the cover or damage the pool.

Making the Smart Choice

Knowing the difference between pool air pillows and water tubes can make your winter prep way easier. Air pillows float in the center and protect your above-ground pool from ice damage. Water tubes sit along the edge to keep your in-ground cover in place. Choose the one that fits your pool type and winter needs, and you’ll save yourself a headache when spring arrives.