POOLHACKER Winterizing Pool Pillow Review for Above-Ground Pools
Updated: Aug 16
If you are closing a round above-ground pool for winter, a pool pillow is one of those products that can seem confusing at first.
It looks simple — basically a large inflatable pillow that sits under the winter cover — but it has a real job. A winter pool pillow can help support the cover, encourage rainwater, snow, and debris to move toward the sides, and give expanding ice somewhere to push instead of pressing directly against the pool wall.
The POOLHACKER Winterizing Pool Pillow is designed for above-ground pool winterizing and comes in multiple size options, including 4x4, 4x4 2-pack, 4x8, 4x8 2-pack, and a 4 ft x 15 ft rectangular version. The listing also highlights a 50 ft rope, reinforced grommets, dual valve design, and instructions to inflate the pillow to around 50–70% rather than fully overinflating it.
In this review, I’ll explain what the POOLHACKER pool pillow does well, how to choose the right size, how to use it correctly, and when you may not need one at all.
Quick Verdict
The POOLHACKER Winterizing Pool Pillow is worth considering if you have a round above-ground pool, use a solid winter cover, and live somewhere that gets freezing temperatures, snow, or ice.
Its biggest benefit is that it helps the winter cover sit with a raised center point instead of lying completely flat across the pool. That can help water, snow, and debris move toward the sides, while also giving ice expansion some room to move inward.
The most important thing is setup. A pool pillow should not be overinflated, and it should not be treated as a magic fix for a poorly installed winter cover. It works best when inflated to about 50–70%, centered under the cover, loosely tied in place, and used with a properly fitted winter cover.
Best Short Answer
The POOLHACKER Winterizing Pool Pillow is a useful add-on for round above-ground pools in freezing climates. It helps support the winter cover, encourages water and debris to move toward the sides, and may reduce pressure from ice expansion. It works best when inflated to 50–70% and placed under a solid winter cover.
POOLHACKER Pool Pillow Specs at a Glance
The POOLHACKER pool pillow is not a winter cover by itself. It is a support accessory that sits under the cover and helps create a raised center point. For the best results, it should be used with a properly fitted solid winter cover and checked during the off-season.
What Does a Pool Pillow Actually Do?
A pool pillow sits under the winter cover, usually near the center of an above-ground pool.
Its job is not to hold the full weight of winter by itself. Instead, it helps change how pressure and debris are managed under the cover.
A pool pillow can help in three main ways.
First, it raises the middle of the winter cover slightly, which can encourage rainwater, snow, and leaves to move toward the edges instead of sitting flat in the center.
Second, in freezing climates, it gives expanding ice somewhere to push inward. Without any room for ice movement, pressure can push outward against the pool wall.
Third, it can help reduce the chance of the winter cover collapsing heavily into the pool, especially when combined with regular off-season checks.
That said, a pool pillow is not a substitute for proper winterizing. You still need balanced water, skimmer protection, the right cover size, and a plan for removing heavy water or debris from the cover.
Who Is the POOLHACKER Pool Pillow Best For?
The POOLHACKER Winterizing Pool Pillow is best for above-ground pool owners who use a winter cover and want extra support during freezing weather.
It is a good fit if:
You have a round, oval or rectangular above-ground pool.
You use a solid winter cover.
Your area gets freezing temperatures.
You want to reduce pressure from ice expansion.
Your winter cover tends to sag in the middle.
You want a raised center point under the cover.
You want a pillow that includes rope for positioning.
This is most useful for pool owners who leave their above-ground pool up through winter and want a more complete closing setup.
Who Should Skip It?
Skip the POOLHACKER pool pillow if you are draining and storing a small seasonal pool, using only a mesh leaf net, or living somewhere that does not get freezing conditions.
You may not need it if:
Your pool does not stay up through winter.
You do not use a winter cover.
You live in a mild climate with no freeze risk.
Your manufacturer advises a different closing method.
You need a winter cover, not a pillow.
You already use another approved support system.
For some pool owners, a pool pillow is very useful. For others, it is optional. The main deciding factors are your pool type, winter climate, cover setup, and whether ice expansion is a real concern.
Choose the Right POOLHACKER Pool Pillow Size
The POOLHACKER pool pillow comes in several size and pack options.
The right size depends on your pool diameter, pool shape, winter cover setup, and how much raised support you want under the cover.
A smaller round pool may only need one 4x4 pillow. A larger round pool may be better with a 4x8 pillow or more than one pillow. Very large pools, oval pools, or rectangular-style setups may need a longer pillow option or multiple pillows.
The goal is not to cover the entire pool surface with pillows. The goal is to create enough center lift so the winter cover does not sit completely flat.
Check the Current Price by Pillow Size
Use the size links below to quickly check the current price for the version that best fits your pool setup.
Quick tip: choose the pillow size based on your pool size and cover shape, not just the cheapest option. A pillow that is too small may not create enough lift, while using too many pillows can make the cover awkward to position.
How Much Should You Inflate a Winter Pool Pillow?
Do not fully inflate a winter pool pillow.
The POOLHACKER guidance says to inflate the pillow to around 50–70% of its full capacity. That is important because the pillow needs room to compress as ice forms, weather changes, and pressure shifts under the winter cover.
If you overinflate the pillow, it may become too rigid. That can increase the chance of stress, leaking, or failure during winter.
A slightly soft pillow is usually better than a rock-hard one. It should have enough air to create lift under the cover, but enough give to absorb movement and pressure.
How to Install the POOLHACKER Pool Pillow
The exact setup depends on your pool and cover, but the basic process is simple.
1. Winterize the pool first
Before adding the pool pillow, make sure the pool is already cleaned, balanced, and ready for closing. Follow a proper above-ground pool winterizing routine, add winter chemicals if needed, and protect the skimmer and fittings before installing the cover.
This step matters because the pillow only supports the winter cover. It does not replace the actual winterizing process.
2. Inflate the pillow to 50–70%
Do not inflate the pillow fully. Aim for around 50–70% so the pillow has room to compress during freezing weather.
3. Close the valve tightly
Make sure the valve cap is closed properly after inflation. A loose valve can let air escape and cause the pillow to deflate during the off-season.
4. Position the pillow near the center
Place the pillow near the center of the pool. It does not need to be perfectly exact, but the goal is to create a raised middle point under the winter cover.
5. Tie it loosely in place
Use the included rope to help keep the pillow from drifting too far. Do not tie it so tightly that it has no room to move. A little movement is normal.
6. Install the winter cover over the pillow
Place the winter cover over the pool and pillow. The cover should still rest on the water surface where possible and should not be pulled tight like a suspended tarp.
7. Check during the off-season
Check the pillow and cover after wind, rain, snow, or freezing weather. Remove heavy water or debris from the cover so too much weight does not build up.
Important Tip: A Pool Pillow Does Not Replace Cover Maintenance
A pool pillow can help support the winter cover, but it does not mean you can ignore the pool all winter.
Rainwater, melted snow, and debris can still collect on top of the cover. If too much weight builds up, it can pull down on the cover and put stress on the pool wall, cable, grommets, and frame.
The pillow helps create lift and gives ice some room to expand, but you should still remove heavy standing water and debris during the off-season.
If your pool is near trees, use a leaf net over the winter cover to catch leaves first. If water collects on top, use a cover pump to remove the excess weight.
Key Features
5 layers of protection
The pool pillow is designed with 5 layers of protection, along with a dual valve, 0.4 mm ultra-thick material, double sealing technology, and a 50 ft rope.
Those features matter because a winter pool pillow needs to stay inflated and positioned for months, not just a few days. It needs enough give to handle pressure changes, but enough strength to support the winter cover through the off-season.
Designed to reduce ice pressure
In freezing climates, a pool pillow gives expanding ice somewhere to move. Instead of all pressure pushing outward against the pool wall, the pillow can compress inward and help reduce stress on the wall.
That does not mean it removes all risk, but it is one reason many above-ground pool owners use pillows during winter closing.
Helps shape the winter cover
A pool pillow helps create a raised center under the winter cover. This can encourage snow, rainwater, leaves, and debris to move toward the sides instead of sitting flat in the middle.
That can make cover maintenance easier, especially when paired with a cover pump and leaf net.
Includes rope for positioning
The included 50 ft rope helps keep the pillow closer to the middle of the pool. This is useful because pillows can drift if they are left loose under the cover.
The rope should hold the pillow in place, but it should not be pulled so tight that the pillow cannot move at all.
Multiple size options
The size options are useful because not every above-ground pool needs the same pillow setup. A small pool may be fine with one 4x4 pillow, while a larger pool may benefit from a larger pillow or multiple pillows.
What It Does Well
The POOLHACKER Winterizing Pool Pillow does a good job of filling a specific gap in the winterizing setup.
It helps support a winter cover, creates a raised center point, and may reduce pressure from ice expansion in freezing climates.
It also includes useful setup pieces like rope and reinforced grommets, which makes it easier to position the pillow instead of letting it float wherever it wants under the cover.
For round above-ground pools that stay up all winter, this is a practical add-on.
Real Limitations to Know Before Buying
The biggest limitation is that a pool pillow is only one part of winterizing.
It will not replace a good winter cover, proper water chemistry, skimmer protection, or regular off-season checks. It also will not stop all water, snow, or debris from collecting on the cover.
Sizing can also be confusing. Some owners may need more than one pillow, especially for larger pools. Others may not need a pillow at all if they live in a mild climate or use a different closing method.
Also, do not overinflate it. Overinflation is one of the easiest ways to make a pool pillow less effective.
Pool Pillow vs Solid Winter Cover
A pool pillow and a solid winter cover do different jobs.
The winter cover protects the pool water from above. The pool pillow sits underneath the cover to help create lift and reduce pressure from ice expansion.
You generally do not choose one instead of the other. If you use a solid winter cover in a freezing climate, a pool pillow can be a useful support accessory.
Pool Pillow vs Leaf Net
A leaf net catches leaves and large debris. A pool pillow sits under the cover to help support the winter cover and manage ice pressure.
They can work together, but they solve different problems.
If leaves are your issue, use a leaf net.
If freezing pressure and cover sagging are your concern, use a pool pillow.
For many pool owners, the best setup is a winter cover with a pool pillow underneath and a leaf net on top during autumn leaf fall.
Pool Pillow vs Cover Pump
A cover pump removes standing water from the top of a winter cover. A pool pillow helps shape and support the cover underneath.
A pillow may help water move toward the sides, but it does not remove water from the cover. If rainwater or melted snow collects and becomes heavy, you still need a cover pump or siphon pump to remove it.
What Else Should You Use With This Pool Pillow?
A pool pillow works best as part of a proper above-ground pool winterizing setup.
Depending on your pool and climate, you may also need:
A solid winter cover.
A leaf net if your pool sits near trees.
A cover pump for standing water.
A skimmer plug or winter plate.
Winterizing chemicals.
Stretch wrap or cover clips if wind is a problem.
The pillow helps support the winter cover, but the rest of the setup helps protect the water, fittings, cover, and pool structure through the off-season.
Is the POOLHACKER Pool Pillow Worth It?
The POOLHACKER Winterizing Pool Pillow is worth considering if you have a round above-ground pool, use a winter cover, and live somewhere that gets freezing conditions.
It is not essential for every pool owner, and it is not a replacement for a good winter cover or regular off-season checks. But for freezing climates, it can be a smart add-on because it helps support the cover and gives ice expansion somewhere to go.
For the right pool, this is one of those winterizing accessories that can make the cover setup more stable and help protect the pool wall during winter.
Related Winterizing Guides
If you are using a pool pillow this winter, these guides may help you finish the rest of your closing setup:
Start Here
Complete Your Winter Setup
Other Winterizing Supplies
FAQ
What does a pool pillow do for an above-ground pool?
A pool pillow sits under the winter cover and helps create a raised center point. It can help support the cover, encourage water and debris to move toward the sides, and reduce pressure from ice expansion in freezing climates.
Do you need a pool pillow for an above-ground pool?
You may need a pool pillow if your above-ground pool stays up through freezing weather and uses a winter cover. It is most useful in colder climates where ice expansion, cover sagging, and heavy water or snow on the winter cover are concerns.
How much should you inflate a winter pool pillow?
Inflate a winter pool pillow to about 50–70% of its full capacity. Do not overinflate it. The pillow needs room to compress as ice expands and pressure changes under the winter cover.
Where should a pool pillow be placed?
A pool pillow is usually placed near the center of the pool under the winter cover. It does not need to be perfect, but centering it helps create a raised point under the cover.
Should you tie down a pool pillow?
Yes, a pool pillow should usually be tied loosely in place so it does not drift too far from the center. Do not tie it so tightly that it cannot move at all.
Does a pool pillow stop water collecting on the cover?
No. A pool pillow can help shape the cover so water and debris move toward the sides, but it does not remove water. You may still need a cover pump to remove standing water from the winter cover.
Can you use more than one pool pillow?
Yes, some pool owners use more than one pillow, especially on larger pools. The right setup depends on the pool size, pillow size, cover type, and how much center lift you want.
What size pool pillow do I need?
The right size depends on your pool size and shape. Smaller round pools may only need one 4x4 pillow, while larger pools may need a 4x8 pillow, multiple pillows, or a longer pillow option.
Can a pool pillow prevent ice damage?
A pool pillow may help reduce pressure from ice expansion by giving ice somewhere to push inward. It cannot guarantee protection from all freeze damage, so you should still winterize the pool correctly and follow your pool manufacturer’s guidance.
Is the POOLHACKER pool pillow worth buying?
It is worth considering if your above-ground pool stays up through winter and you use a solid winter cover. It works best in freezing climates where cover support and ice expansion are real concerns.
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