Line 3:
Line 3:
===Materials===
===Materials===
−
<h4>Gravel storage layer</h4>
+
<h4>Gravel reservoir</h4>
−
{{:Gravel}}
+
{{:Reservoir gravel}}
+
{{:Pea gravel}}
+
<h4>Geotextile</h4>
+
{{:Geotextile}}
<h4>Biomedia</h4>
<h4>Biomedia</h4>
{{:Biomedia}}
{{:Biomedia}}