I am using screenings from the local quarry. Mostly Limestone.
I have a standard colander for pasta and a screen colander from the dollar store. I stack them on top of each other and shake them a bit and dump the 2 different size materials in different containers. Once I have a good amount of ballast I rinse it with the hose and dry it in a large tin on the grill.
I will post a couple pictures of the process later after work.![IMG_20240513_060242 IMG_20240513_060242](https://ogrforum.ogaugerr.com/fileSendAction/fcType/0/fcOid/184156761648711232/filePointer/184156761664438610/fodoid/184156761664438606/imageType/MEDIUM/inlineImage/true/IMG_20240513_060242.jpg)