Pool Blanket Rolling Crooked? 5 Fixes That Work

By the Lux Pool Team · Published 2026-05-27 · ~10 min read

You hit the remote, the motor engages, and the blanket starts rolling onto the reel — but instead of rolling straight, it walks toward one side, bunches, and either jams or drags off the edge of the tube. This is the most common motorized reel complaint we get after the install is complete, and it's almost always fixable in 10 minutes with no parts ordered.

This guide walks through the diagnostic order — what to check first, second, third — so you find the actual cause instead of cycling through random fixes.

Why blankets roll uneven (it's almost never the motor)

A motorized reel rolls evenly when three things are true:

1. The tube is rotating about a level axis
2. The blanket is gripped uniformly along its leading edge
3. The blanket has uniform thickness across its width

Break any of those and the cover walks to one side as it rolls up. The diameter of the wrap grows slightly faster on the side with more material per inch, which pulls the rest of the blanket in that direction. Once it starts, the effect compounds with each rotation.

The motor itself rolls perfectly straight — it just spins the tube. Almost every uneven-rolling case we troubleshoot turns out to be #1, #2, or #3 from the list above. The motor is rarely the culprit.

The diagnostic order

Work through these in order — don't skip ahead. Each fix takes a few minutes and one rules out the next.

1. Fix 1: Is the reel level? The single most common cause.
2. Fix 2: Are the leading-edge clips evenly spaced? Second most common.
3. Fix 3: Is the blanket centered when you start the wrap? Third.
4. Fix 4: Is the tube straight (not bowed)? Less common but happens after years.
5. Fix 5: Is the blanket itself uneven (stretch / shrinkage)? Rare but real.

Fix 1 — Level the reel

The reel's axis of rotation needs to be horizontal. If one end is higher than the other — even by an inch — the blanket will walk toward the higher end as it rolls up. (Gravity pulls the loose blanket down, and the wrap grows faster on the high side.)

How to check:

1. Place a 2-ft bubble level on the reel tube itself (between blanket windings if the blanket is partly on)
2. Check level at multiple points along the tube length
3. If you see more than half a bubble of tilt, you need to level it

How to fix:

• Slide thin shims (cedar shake, plastic deck shim, even a tile spacer) under the wheel of the high end — usually the low end is what needs raising actually; check the deck slope
• If your deck slopes (pools often have a 1/8" per foot slope away from the coping for drainage), you may need permanent shims at one set of wheels
• Confirm level again after shimming

This fix alone solves 60-70% of uneven rolling complaints. Try this first before anything else.

Fix 2 — Reset the leading-edge clip spacing

Solar blankets attach to the reel tube via leading-edge clips or straps. If the clips are unevenly spaced — or if one clip slipped off the blanket and was re-attached an inch off — the cover gathers more material on one side than the other and walks.

How to check:

1. Roll the blanket fully off the reel onto the deck (or onto the pool surface)
2. Look at the leading edge clip spacing — the clips should be evenly distributed
3. For a 20-ft wide blanket, expect 5-7 clips spaced every 36-48 inches

How to fix:

• Re-space the clips so the gaps are uniform
• If any clip is loose or has a torn attachment point, replace or re-attach
• Confirm all clips bite the blanket at the same depth from the leading edge (typically 1-2 inches in from the edge)

Fix 3 — Restart the wrap with the blanket centered

Sometimes the issue is the first wrap of the season — if you started rolling the blanket up while it was misaligned by even an inch or two, every subsequent wrap compounds the offset.

How to fix:

1. Unroll the blanket fully off the reel onto the pool surface
2. Manually re-center the leading edge — make sure the midpoint of the blanket aligns with the midpoint of the reel tube
3. Use the remote to roll up slowly, watching the first 5-6 rotations carefully
4. If you see the blanket starting to walk in the first few rotations, stop, re-center, and try again

Sometimes the cleanest fix is to roll the blanket off, drag it to one side by 2-3 inches to compensate for known walk direction, and re-start. After a few seasons of practice, you'll know which way your specific setup tends to drift.

Fix 4 — Check the tube for bow or warp

Aluminum reel tubes can develop a slight bow over years of use, especially if the reel was stored under tension or if a heavy snow load sat on the tube during winter. A bowed tube rolls unevenly because its axis isn't a true straight line.

How to check:

1. Remove the blanket entirely
2. Sight down the length of the tube from one end — like sighting a pool cue
3. If you see a curve, the tube is bowed

How to fix:

• A modest bow (under 1/2 inch over a 20-ft tube) is acceptable and the blanket will roll fine
• A significant bow (1+ inch) needs a new tube — either an aluminum replacement tube (sold by your reel manufacturer; often $60-$120) or a tube-segment swap if your tube is multi-section
• Most multi-section tubes are joined by an internal coupler — you can replace one section without replacing the whole reel

Fix 5 — Inspect the blanket for stretch or shrinkage

After 2-3 seasons of UV exposure, solar blankets can develop uneven thickness or stretch. One area gets thinner (UV degradation), another area shrinks slightly (heat cycling). The result: the wrap diameter isn't uniform across the tube and the blanket walks.

How to check:

1. Lay the blanket flat on the deck
2. Measure thickness with a feel-test — obvious thin spots are visible to the eye after a few seasons
3. Measure overall dimensions against original spec — significant shrinkage means EOL

How to fix:

• Blanket EOL — time to replace. See our recommended blankets guide.
• If you've extracted 3+ seasons from a 12-mil blanket, you've gotten full value

When to call support

If you've worked through all five fixes and the cover still walks significantly, the issue is probably one of:

• Motor shaft adapter slightly too small (motor wobble during operation)
• Damage to the motor stub shaft (rare, but check for visible bends or cracks)
• BMS issue causing inconsistent motor torque on each rotation (very rare)

Send photos and a short video of the rolling action to 740-495-6832. The video is critical — we can usually diagnose from 15 seconds of footage what would take an hour of back-and-forth text.

The quick reference