It could be the same and marketing, but NSF certification means it can technically be used to seal a drinking water pipe so I'd go with that.
ÂSiv said:No doubt the bricks are by far the cheapest but to get to 2ft high, I'd need some cement and skill!
ÂThe Hot Pepper said:By the way, for non-food planters I use Flex Seal. That stuff really does work!!!!!
Âsolid7 said:Â
I did not attach mine. Just stacked them in place. It's not worth using mortar, as there is no solid footer under them. I just kick them into place. As time goes on, they will slowly absorb into the ground - at which time, I may or may not add more layers. The big difference, is that I actually want my media to be touching the ground. I think most people like to have a container bottom, for isolation. Pros/Cons of both.Â
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But as I said, there is a fair amount of work involved... Especially if, like me, you can't drive your truck up to the bed site to unload... I had to slog them about 200 ft to destination, carrying 2-3 at a time.
ÂSiv said:Â
I leave the bottom of my raised beds open to the ground also. I filled the bottom foot with tree branches, leaves and other organic waste and only the top foot with soil. I have to top them up every year as I guess the organics are decomposing but the plants and worms seem very happy!