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ZachRoyGarage

How should the ground be prepared to prevent water pooling under panels?

Documented on the Clearing the land for my second solar rack! build

Published July 28, 2026

Grade the site to provide positive drainage away from the rack area, use crushed gravel under and around footings, and compact the soil to avoid settling.

Full Answer

Grade the site to provide positive drainage away from the rack area, use crushed gravel under and around footings, and compact the soil to avoid settling. Maintaining slope and installing drainage where necessary prevents pooling.

Related Parts

Solar racking hardware (rails, clamps, fasteners)
$0
Concrete mix (bags)
$120
Crushed gravel / base material
$250
Landscape fabric / weed barrier
$40
Tree/brush removal & hauling service (estimated)
$300

Related Tools

Shovel
Wheelbarrow
Rake
Chainsaw
Skid-steer / Bobcat (rental)
Stump grinder (rental) or excavator
Plate compactor (rental)
String line & stakes
Tape measure & level
Personal protective equipment (PPE)
Brush cutter / brush hog