5 Signs It's Time to Replace Your Above Ground Pool Cover

taking off a nasty, heavy pool cover at the end of winter is the worst part of pool ownership. And every year, you look at those sketchy spots and think, 'Eh, it’ll last one more season.

Then spring comes, you peel it back, and your water looks like premium swamp juice.

A pool cover that's past its prime isn't just useless — it's actively letting debris, UV rays, and algae into your pool while giving you a false sense of protection. And the irony is that replacing a cover before it fully fails is always cheaper than dealing with the pool damage that happens after.

Before you clamp the cover down for another winter, check it against these five warning signs. Saving $80 on a cheap tarp now isn’t worth a $400 chemical bill in April.

A pool cover that's doing its job looks like this — snug, clean, no sag, no gaps. If yours doesn't, keep reading.

1.There Are Holes or Tears — Even Small Ones

This one seems obvious, but it gets rationalized away more than you'd think. "It's just a small rip near the edge." "I can patch that." "It's not actually letting that much in."

A tiny puncture might seem fine, but mid-November winds will turn that nick into a 2-foot rip. Plus, dirty autumn rain and oak leaves will seep right through, staining your liner before winter even hits.

Patching works, briefly, for genuinely minor damage — a pinhole, a small nick that hasn't spread. But if you're dealing with tears longer than a few inches, tears near grommets (which are the highest-stress points on any cover), or multiple small holes scattered across the fabric, patching is just delaying the inevitable. You're spending time and money on a cover that's already failing structurally.

The real question to ask is: would I buy this cover in its current condition? If the answer is no, that tells you what you need to know.

2.The Grommets Are Pulling Out or the Straps Won't Hold

The grommets — those metal rings along the edge of the cover that the straps thread through — are what actually keep your cover on the pool. When they start pulling free from the fabric, the whole fastening system loses integrity.

You'll notice this as:

· Grommets that feel loose or wobble when you touch them

· Fabric around the grommet that's fraying, stretched out, or thinning

· Straps that keep coming loose no matter how tight you set them

· One side of the cover that consistently lifts or shifts, even in moderate wind

Once the grommets start going, there's no real fix. You can't re-anchor a grommet into fabric that's already weakened around it — the same stress that pulled it loose the first time will just pull it loose again. And a cover that can't stay anchored properly is, functionally, not a cover.

3.The Fabric Has Gone Stiff, Brittle, or Paper-Thin

If the fabric crackles and flakes when you fold it, the material is already dead. That chalky white powder on your hands is the UV coating disintegrating. It’s no longer blocking the sun—it’s basically just a giant tea bag filtering dirt into your pool.

If yours feels stiff, crackly, or like it might snap if you fold it sharply — that's UV degradation. Prolonged sun exposure breaks down the polymer chains in the fabric coating, making it progressively more brittle until eventually it just starts cracking and flaking apart.

You might also notice:

· Significant fading, especially uneven patches where one area has bleached much more than another

· A chalky or powdery residue on the surface (the UV coating breaking down)

· Areas that feel noticeably thinner when you hold them up to the light

Brittle fabric tears easily and unpredictably. It's also lost most of its UV-blocking capability, which means sunlight is getting through to your pool water and driving up your chemical costs even when the cover is technically "on."

This is one of those signs that sneaks up slowly. The cover doesn't fail suddenly — it just gradually becomes less and less effective until you realize one day that it's doing almost nothing.

4.Mold, Mildew, or Staining That Won't Come Off

Some surface staining on a pool cover is normal — tannins from leaves, mineral deposits from hard water, general outdoor grime. These clean off with soap and water, and they don't affect the cover's performance.

What's different is staining that's worked into the fabric and won't budge no matter how thoroughly you clean it. Dark patches, black spots, or a musty smell that lingers after washing — these are signs of mold and mildew that have penetrated the fabric itself, not just sitting on the surface.

Mold in the fabric isn't just an eyesore—it’s a live hazard for your pool. We’re not talking about some leaf stains you can hose off; we’re talking about deep, black, slimy mold that smells like a wet basement. Once it embeds in the fibers, you can't scrub it out. Leave it on, and you're basically inoculating your water with algae spores before winter even starts.

5.The Cover No Longer Fits Properly

Pool covers don't shrink, but they do deform. Years of stretching, folding, the weight of standing water, and the pulling of wind can permanently change the shape and dimensions of a cover — so it no longer sits properly on a pool it once fit fine.

Signs of this:

· One side consistently sags into the pool no matter how tight you pull the straps

· Gaps between the cover edge and the pool wall that weren't there before

· The cover pulls unevenly, with one area always tighter than the others

· You can't get the cover to lie flat anymore — it bunches, buckles, or waves

A cover that doesn't fit correctly is a cover with gaps. And gaps mean debris, sunlight, and evaporation — exactly what you bought the cover to prevent.

This is also the right moment to measure your pool again before buying a replacement. Pools don't change size, but people misremember dimensions, and a replacement that's the same size as your original may not be the same as what actually fits your pool.

This is what happens when a cover stops doing its job. A proper replacement is always cheaper than fixing the pool aftermath.

One More Thing: How Old Is It?

If you can't remember when you bought your current pool cover, that's a sign in itself.

A quality above ground pool cover, well maintained, lasts somewhere between 3 and 7 years. Covers used in high UV climates (the Southwest, Southeast), or through harsh winters (Midwest, Northeast), tend to land closer to the shorter end. If your cover is pushing 5 years old and showing any of the signs above, replacement is the right call — not something to keep putting off until next season.

The timing actually matters too. Fall — right before you'd normally be closing the pool — is the worst time to discover your cover needs replacing, because that's when demand spikes and options can be limited. If you're seeing warning signs now, replacing in late summer or early fall while you have time to shop properly is a much better position to be in.

What to Look for in a Replacement

If you've checked off two or more of these signs, it's time for a swap. Over at Faircovers, we don't do those flimsy, single-season tarps. We cut our covers from heavy-duty 420D Oxford fabric with massive UV resistance, whether you running a standard 18-foot round Intex or a massive rectangular backyard setup.When you're ready to replace, here's what to prioritize:

Get the size right. Measure your pool's actual dimensions — width, length or diameter — not just what the box says. Pool manufacturers and cover manufacturers measure slightly differently, and a cover that's a few inches off fits very differently than one that's right.

Choose the right fastening system for your situation. Strap buckle systems are easy to use; wire rope winch systems give a tighter, more wind-resistant fit. If you're in a region with strong seasonal storms, the latter is worth the extra effort.

At Faircovers, we carry above ground pool covers across all shapes and sizes:

Round pool covers:

· Small round pool covers

· Medium round pool covers

· Large round pool covers

· Extra-large round pool covers

Rectangular pool covers:

· Small rectangular pool covers

· Medium rectangular pool covers

Oval pool covers:

· Small oval pool covers

· Medium oval pool covers

Not sure which size fits your pool? Check our pool cover guide or contact us — we'll help you figure it out.

While You're At It

If the pool cover is showing its age, it's worth taking a look at the rest of the backyard too. Patio furniture covers, grill covers, and vehicle covers all have similar lifespans and similar warning signs — brittle fabric, failing fasteners, persistent staining.

· Patio furniture covers — sofas, sectionals, chairs, and tables

· BBQ grill covers — for gas grills, charcoal grills, and smokers

· Vehicle covers — bikes, motorcycles, golf carts

Browse all covers at Faircovers →

Questions about sizing or which cover is right for your pool? Reach out to our team — we're happy to help.

Faircovers — Durable above ground pool covers, patio furniture covers, grill covers, and more. Protecting your outdoor space, every season.