So, you’ve got a nice concrete patio or slab and you’re ready to set up your inflatable pool. That’s a great spot—it’s flat and stable. But before you fill it, you need to know what to put under inflatable pool on concrete. Getting this right protects your pool, your concrete, and most importantly, the people using it.
Concrete might seem smooth, but it’s actually abrasive and can get extremely hot in the sun. Without a protective layer, your pool liner is at risk for punctures, and the surface can become uncomfortably warm for bare feet. The right ground cover solves these problems, making your pool area safer and more durable for the whole season.
What To Put Under Inflatable Pool On Concrete
The best materials create a soft, insulating, and non-slip barrier. They shield the pool vinyl from the rough concrete and provide cushioning for comfort. Here are the top options, from most recommended to acceptable alternatives.
Top-Tier Protective Covers:
* Interlocking Foam Mats (EVA Foam Tiles): These are the gold standard. They’re soft, provide excellent insulation from cold or hot concrete, and offer great cushioning. They’re easy to assemble to fit your pool’s shape and provide a uniform surface.
* Geotextile Fabric (Ground Cloth): A heavy-duty, non-woven fabric is a fantastic first layer. It’s designed to be puncture-resistant and provides a smooth barrier. It’s often used under softer materials for extra protection.
* Padded Pool Floor Covers: Some companies sell custom-sized, padded covers made specifically for this purpose. They are a bit of an investment but offer superb protection and comfort.
Good Secondary Options:
* Moving Blankets or Old Comforters: These make a surprisingly effective cushion. They’re thick, insulate well, and are often free if you repurpose old ones. Just ensure they are completely dry before laying them down to prevent mildew.
* Outdoor Rugs or Artificial Grass: A large, water-resistant outdoor rug can work. It provides texture and some padding. Artificial grass offers good drainage and a pleasant feel underfoot, but ensure it’s secured so it doesn’t bunch.
Use With Caution:
* Tarps Alone: A basic blue tarp is better than nothing, but it’s slippery when wet and offers no cushioning. It can also tear easily. If you use one, choose a heavy-duty version and pair it with a softer layer on top.
* Cardboard: Cardboard is a temporary, emergency option. It will get soggy and disintegrate quickly, needing frequent replacement. It’s not a solution for long-term use.
Why You Must Use a Protective Layer
Skipping this step can lead to several problems. Concrete isn’t as pool-friendly as it seems.
First, abrasion is the biggest risk. Microscopic grit and the texture of the concrete itself will grind against the pool liner with every step and movement. This weakens the vinyl, leading to leaks and premature failure.
Second, temperature extremes. Concrete gets very hot in direct sun, which can make the pool floor uncomfortably warm and even degrade the material over time. In cooler weather, it saps heat from the water, making it chillier.
Third, slipperiness and comfort. A wet concrete pool bottom is extremely slippery. A textured ground cover provides crucial grip. Also, lying or sitting on a thin pool liner over hard concrete is not comfortable for anyone.
How to Prepare Your Concrete Surface
Proper prep ensures your protective layer works effectively. Here’s how to get your concrete ready.
1. Clean Thoroughly: Sweep the area vigorously. Then, use a garden hose or pressure washer on a low setting to remove all dirt, sand, and debris. Any leftover grit will work its way up and cause abrasion.
2. Inspect for Damage: Look for any major cracks, chips, or uneven spots. You can fill small cracks with concrete caulk to create a smoother surface. Sharp edges are a puncture hazard.
3. Ensure Proper Drainage: Check that your concrete slab slopes slightly to allow water to run off. You don’t want standing water under or around your pool, as it can lead to algae and slipping hazards.
4. Let it Dry Completely: After washing, allow the concrete to dry fully before laying down any cover. This prevents mold and mildew from forming underneath.
Step-by-Step Installation Guide
Follow these steps for a secure, safe setup that will last.
1. Measure Your Pool: Note the diameter or dimensions. Your ground cover should extend at least 6-12 inches beyond the pool’s edge on all sides. This protects the pool from feet touching the concrete and catches splashes.
2. Lay the Base Layer (Recommended): Start with a sheet of geotextile fabric or a heavy-duty tarp. This is your primary barrier against abrasion.
3. Add Cushioning: Place your chosen cushioning material on top. If using foam tiles, interlock them tightly. For blankets or rugs, overlap them slightly and smooth out any wrinkles or thick seams.
4. Secure the Edges: Use heavy, flat objects (like patio furniture blocks or sandbags) to weight down the outer edges of your ground cover. Do not use tape or adhesives on the concrete.
5. Position the Pool: Carefully unfold and position your inflatable pool on the center of the prepared area. Avoid dragging it.
6. Inflate and Partially Fill: Inflate the pool according to its instructions. Add about an inch of water to the bottom to help it settle and smooth out the liner before final filling.
Common Mistakes to Avoid
Even with good intentions, its easy to make a error. Steer clear of these pitfalls.
* Using Only a Thin Tarp: As mentioned, this is a minimal solution that often fails. The slipperiness alone is a safety concern.
* Ignoring Wrinkles and Bumps: Any fold or lump under the pool will create pressure points and feel uncomfortable. Take time to smooth everything flat.
* Forgetting About Wind: An empty pool is like a giant sail. A well-weighted ground cover can help keep the pool from shifting in a sudden gust before it’s filled.
* Allowing Water Pools: If water collects on top of your ground cover under the pool, it can promote mildew. Ensure your setup allows for some airflow or drying.
Maintenance and Seasonal Care
Your protective setup needs a little attention to last. After each use, sweep or hose off the top of your ground cover to remove debris and chlorine residue. Let it air dry completely if possible.
At least once a month, partially deflate the pool to lift the edges and check underneath. Look for moisture, pests, or shifting. This quick check prevents bigger issues.
When the season ends, don’t just pack everything away wet. Clean and dry your ground cover completely before storage. Roll up foam mats or fabric separately. This prevents mold and ensures they’re ready for next year.
FAQ: Your Questions Answered
Can I put an inflatable pool directly on concrete?
It’s not recommended. Direct contact risks punctures from the abrasive surface, makes the pool floor very hot, and creates a slippery, uncomfortable base.
What is the cheapest thing to put under a pool on concrete?
Repurposed moving blankets or old comforters are a very low-cost option. A heavy-duty tarp is another budget choice, but remember it offers no cushioning.
How do I stop my pool from slipping on concrete?
A non-slip material like interlocking foam tiles or an outdoor rug is key. Always weight down the edges of your ground cover with heavy objects to prevent the whole assembly from shifting.
Can I use a yoga mat under my inflatable pool?
For a very small kiddie pool, a few yoga mats might work temporarily. But for larger pools, they are not thick or durable enough and can slide apart, creating an uneven surface.
Is it okay if water gets under the pool liner?
A small amount from splashes is normal. But significant standing water under the pool should be avoided. It can cause mildew, make the ground cover shift, and attract insects. Good preparation and occasional checks help manage this.
Setting up your inflatable pool correctly from the start is the best way to ensure a safe and fun summer. By choosing the right material to place under it on your concrete, you’ll extend the life of your pool and create a much more enjoyable spot for everyone to cool off.