Lava rock

[qclabrat]

Anyone know where to get lava rock? Will need close to 200 cubic feet for the lower bog filter substrate. Or suggest something larger than the pea gravel filling on top. Not looking to spend $1000 for the BBQ/fire pit stuff

 

[mrsclem]

I always get it at Lowes. You may want to rethink lava rock for a bog. It clogs easily.

 

[sissy]

some garden centers carry it .My sister got a couple of tons of it for her landscaping .But I get it at lows .Usually sale gives you 3 bags for 9 dollars

 

[Telion]

Some rock only ssellers provide it too.

 

[Panzer13]

I agree with mrsclem. Pee gravel is recommended for bogs. This is a great article on how to build one. http://homeguides.sfgate.com/build-bog-filter-pond-58831.html