Line 3:
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===Materials===
===Materials===
<h4>Gravel storage layer</h4>
<h4>Underdrain</h4>
{{:Gravel}}
{{:Underdrain}}
<h4>Underdrain pipe</h4>
<h4>Planting medium</h4>
{{:Pipes}}
{{:Biomedia}}
<h4>Geotextile</h4>
<h4>Plant list</h4>