A backyard pool brings relaxation, fun, and a cool retreat from the summer sun. Bestway pools, known for their affordability and easy setup, are a popular choice for families and first-time pool owners. But sometimes, when you fill your Bestway pool for the first time, you notice something worrying: the sides start to bow outward. This sight can be alarming and raises many questions. Is it normal? Is your pool going to collapse? Can you fix it, or is it too late?
This article explores why Bestway pool bowing while filling happens, when it’s a real problem, and what you can do to prevent and fix it. Whether you’re a new pool owner or have set up several above-ground pools before, understanding this issue will help you keep your pool safe and enjoyable all summer.
What Does “bowing” Mean In Bestway Pools?
When people talk about their Bestway pool “bowing,” they mean the pool’s sides are curving outward as it fills with water. This is especially noticeable with frame pools, where the metal frame supports a flexible liner. As water weight increases, the liner and frame can bend or stretch.
Some bowing is normal due to the water pressure pushing outward. However, excessive bowing means something is wrong. If the bowing is severe, it can lead to leaks, frame failure, or even a pool collapse.
Common Signs Of Problematic Bowing
- Sides bulge out much more at one spot than others
- Frame legs tilt or come off the ground
- Liner stretches so far it looks like it could tear
- Water level becomes uneven
- Pool looks oval or misshapen
Spotting these early can help you act before bigger problems develop.
Why Bestway Pools Bow During Filling
Understanding the main causes of bowing helps you prevent it or respond quickly.
1. Water Pressure And Pool Design
Above-ground pools like Bestway’s are made with flexible materials. As water fills the pool, the weight pushes out on the sides, causing them to bow. The frame is designed to handle some outward force. However, the frame and liner must work together, and problems happen if they are not set up correctly.
2. Uneven Ground
One of the biggest reasons for severe bowing is uneven ground. If your pool sits on a slope, the water will push harder on the lower side. This causes that side to bow out more and can pull the pool out of shape. Even a difference of 1-2 inches across the pool’s base can cause bowing problems.
3. Incorrect Frame Assembly
If frame pieces aren’t fully connected or are put together in the wrong order, the pool won’t be as strong. Gaps, loose joints, or missing pins can let the sides bow out more than they should.
4. Overfilling
Filling the pool above the recommended water line increases outward pressure. The higher the water, the more force on the walls. Exceeding limits can make even a well-set pool bow dangerously.
5. Old Or Stretched Liner
If the liner has been stretched from past use or age, it may not fit tightly. A loose liner bows more and may not support the frame as designed.
6. Weak Or Missing Support Legs
Some pools use U-shaped or vertical legs to support the sides. If these are not installed properly, missing, or not on solid ground, the sides bow out too much.
7. Poor Ground Preparation
Rocks, roots, or soft spots under the pool let parts of the frame sink. This creates uneven pressure and can lead to bowing.
8. Water Filling Too Fast
Filling the pool quickly before all parts settle and adjust can make bowing worse. Slow filling lets the liner and frame take shape naturally.
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How Much Bowing Is “normal” For Bestway Pools?
It’s important to know that some bowing is expected and safe. Bestway pool frames are designed to flex a little under water weight.
For most Bestway frame pools:
- Sides may bow out up to 2–3 inches when full
- Frame legs may lean out slightly but should not lift off the ground
- The pool should stay round or rectangular (not become oval or distorted)
If the bowing is more than this, or if the frame is twisting or lifting, action is needed.
Comparing Bowing In Different Bestway Pool Models
Below is a comparison of common Bestway pool types and how much bowing is typical.
| Pool Model | Normal Bowing | Frame Type | Common Problem Areas |
|---|---|---|---|
| Steel Pro Frame | 2-3 inches | Steel tubes | Corner joints |
| Power Steel | 2-3 inches | Reinforced steel | Vertical legs |
| Fast Set (inflatable) | Minimal | Inflatable ring | Edge seam |
Tip: Frame pools bow more than inflatable ring pools due to flexible liners and metal frames.
How To Prevent Bestway Pool Bowing During Setup
Prevention starts before you fill a drop of water. The right steps make bowing much less likely.
1. Choose A Level Spot
Find the most level ground possible. Use a long board and a carpenter’s level to check the area. Remove grass, rocks, and roots. For sloped yards, consider using sand or foam to build up the low side.
2. Prepare The Base Properly
A strong, smooth base supports the pool evenly.
- Use a ground cloth or tarp under the pool
- Add a 1-2 inch layer of play sand or fine gravel and tamp it flat
- For soft ground, consider foam boards for extra support
3. Assemble The Frame Carefully
Follow instructions exactly. Double-check that all frame pieces are connected, pins are in place, and there are no gaps.
- Work with a partner if possible
- Make sure the frame sits flat before adding water
4. Add Support Under Frame Legs
Place paver stones or pressure-treated wood under each frame leg. This spreads the weight and prevents sinking, especially on soft or sandy soil.
5. Fill The Pool Slowly
Add water a few inches at a time. As it fills, check for bowing, shifting, or sinking. Adjust the frame or base as needed before continuing.
6. Watch For Early Signs
Check often as you fill. If you notice one side bowing more, stop and adjust before it gets worse.
What To Do If Your Bestway Pool Starts Bowing While Filling
If you see bowing during filling, don’t panic. Most cases can be fixed if caught early.
Step 1: Stop Filling
Pause the water. If the pool is less than 1/3 full, it’s easier to move and adjust.
Step 2: Check The Frame
Walk around and look for:
- Frame legs that are sinking or off the ground
- Bent or loose connections
- Out-of-place pins
Fix any assembly problems now.
Step 3: Re-level The Ground
If one side is lower, drain some water and lift that section. Add sand, foam, or a paver to bring it level.
Step 4: Adjust The Liner
Pull the liner gently to smooth out wrinkles. Make sure it’s centered and not pulling too much on one side.
Step 5: Resume Filling Slowly
Add water a few inches at a time, checking as you go. If bowing returns, stop and adjust again.
Insight: Many people rush filling, then try to fix the bowing after the pool is full. It’s much easier to fix problems when the pool is only partly filled.
Real-life Example: Bowing And Collapse
Consider a family who set up a 12-foot Bestway Steel Pro on their sloped lawn. They didn’t check for level ground and skipped pavers under the legs. As the pool filled, one side bowed much more than the other. At half full, a frame leg sunk into the dirt, and the pool liner stretched.
They kept filling, hoping the water would “even out” the shape.
By the next morning, the pool had collapsed, flooding their yard and damaging the lawn. The main cause was uneven ground and missing support under the legs. This story shows why checking level and supporting the frame is so important.
Can You Fix A Bowed Bestway Pool Without Draining?
If your pool is already full and bowing, you have fewer options. Here’s what you can try:
- Place bricks or pavers under sinking legs (if you can lift them safely)
- Gently push the frame back into position (with help)
- Remove some water to reduce pressure, then adjust the liner and frame
- For severe bowing, draining and resetting may be the only safe option
Important: Never get under the filled pool or try to lift it alone.
Common Mistakes That Lead To Bowing
Many new pool owners make simple errors that cause problems. Avoid these:
- Skipping the level check
- Not using pavers under legs on soft ground
- Overfilling above the max water line
- Rushing assembly or missing frame parts
- Not checking for wrinkles before filling
- Ignoring early signs of bowing
Insight: Spending an extra hour on setup can save days of trouble and repair.
Bestway Pool Maintenance To Prevent Future Bowing
Once your pool is set up safely, some regular care keeps bowing from returning.
Check Frame And Base Weekly
Walk around the pool and look for:
- Sinking frame legs
- New bulges or leaning
- Stretched liner spots
Keep Water Level Correct
Never fill above the highest marked water line. Too much water increases bowing risk.
Protect The Ground
Keep heavy furniture, toys, or equipment away from the pool sides. These can press on the liner or frame and cause new weak spots.
Store Pool Properly In Off-season
When you take the pool down, clean and dry the liner fully before storing. Avoid folding in ways that stretch the liner. Store frame parts in a dry place to prevent rust and weakness.
Comparing Bestway Pools With Other Brands
How does Bestway compare to other above-ground pools when it comes to bowing?
| Brand | Frame Strength | Typical Bowing | Common Issues |
|---|---|---|---|
| Bestway | Moderate | 2-3 inches | Leveling, leg sinking |
| Intex | High | 1-2 inches | Rust, liner tears |
| Coleman | Moderate | 2-3 inches | Frame shifting |
Bestway is similar to other mid-range pools. The key to less bowing is careful setup, not just the brand.
When To Replace Or Repair Your Pool
If bowing is severe, you may need to repair or replace parts.
- Bent frame pieces: Replace with new ones from Bestway or a pool store.
- Stretched or torn liner: Patch small holes with a liner repair kit; replace if large sections are loose.
- Broken joints or pins: Order replacements before using the pool again.
For older pools (5+ years), liners can lose strength and stretch more. Plan for replacement if bowing becomes a regular problem.
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Tips For A Safe And Enjoyable Summer With Your Bestway Pool
A properly set up pool should give you years of fun. Here are practical tips:
- Always check level before filling, even if you used the spot before.
- Use support under every leg.
- Fill slowly and check as you go.
- Teach kids not to hang or sit on pool sides.
- Store the pool correctly at the end of the season.
Bonus: For extra strength, some owners add “ratchet straps” around the outside during filling. This can help keep the shape but is not a fix for poor setup.
What Pool Owners Usually Miss
Many people miss two important things:
- Water Weight: A single gallon of water weighs about 8.34 pounds (3.78 kg). A 3,000-gallon pool weighs over 25,000 pounds (11,340 kg)! Even small ground dips can’t handle this weight, so level is critical.
- Frame Flex Is Designed: A little bowing means the frame is absorbing stress as planned. It is not a sign of poor quality, but wild bowing is a sign of setup or ground problems.
Resources For Further Reading
For more on pool setup and troubleshooting, check out this Swimming Pool Installation Guide with detailed diagrams and safety tips.
Frequently Asked Questions
Why Does My Bestway Pool Bow Out So Much During Filling?
Most bowing happens because the pool is on uneven ground, the frame is not fully assembled, or the water level is too high. Some bowing is normal, but large bulges mean you should stop filling and check the setup.
Can I Fix A Bowed Bestway Pool Without Draining All The Water?
It depends on how full the pool is and how bad the bowing is. For small bowing, you may be able to lift and adjust frame legs or add support under them. For severe cases, draining part or all of the water is safer.
Is Bowing Dangerous For Above-ground Pools?
If bowing is severe, it can lead to frame collapse, liner tears, or water flooding your yard. Mild bowing is normal, but always monitor for changes and fix problems early.
How Can I Make My Bestway Pool Last Longer?
Keep the pool on level ground, support the frame legs, don’t overfill, and check the frame and liner every week for wear or damage. Proper winter storage also helps.
What Should I Put Under My Bestway Pool To Prevent Bowing?
Use a ground cloth, a layer of play sand or foam, and solid paver stones under each frame leg. These steps spread out the weight and keep the pool level, preventing bowing.
A Bestway pool can be a safe, fun spot for your family if set up the right way. Paying close attention during setup and regular checks through the summer will help you avoid bowing and enjoy your pool with peace of mind.
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