Steel garden rollers are heavier and will flatten your lawn better, but they’re harder to maneuver. Polyurethane rollers are lighter and easier to move around, but they are less durable and could get punctured.

Don’t overwater your lawn since it could get muddy.

You can also use sand inside the roller if you want. Refer to the instruction manual if you have trouble locating the fill hole on your roller.

If it’s easier, you can try pushing the roller in front of you. Take breaks frequently so you don’t get sore or worn out.

Mounds that don’t flatten out with the roller are usually compacted and need to be removed by hand. You may need to reseed any mounds you removed.

You can also buy or rent a gas-powered aerator to make the job quicker.

You can fill in low spots all at once or you can work in small sections of your yard.

If you’re not sure where water lines run, contact your city’s water department to help you locate them. Do not try to level your lawn if you suspect and underlying issues.

Don’t overwater your lawn since it will be hard to work with when it’s too wet.

If the hole is shallower than 2 inches (5. 1 cm), then you can put soil directly on the grass. Save the grass if you can because you may be able to replant it when you’re finished filling in the holes.

You can top-dress your entire lawn if you want, or you can just choose a few areas to fill in.

Make sure your layer of top dressing is less than 1 in (2. 5 cm) thick or else it could cause your existing grass to die.

If your lawn still isn’t level, then use more soil to fill in the holes again.

You can also fill in any bare spots with sod if you don’t want to grow grass from seeds. Look for grass that’s the same type as the rest of your lawn so your yard looks uniform.

Make sure your lumber spans the entire area you leveled, or else you may get an inaccurate reading. Alternatively, to level the lawn, cut it down as low as possible. [20] X Expert Source Keith SouzaHome Improvement Specialist Expert Interview. 20 August 2021. Use sand in the sections of the yard that are like bumps. [21] X Expert Source Keith SouzaHome Improvement Specialist Expert Interview. 20 August 2021. Then use a manual leveler to smooth it out. [22] X Expert Source Keith SouzaHome Improvement Specialist Expert Interview. 20 August 2021.