JohnHuff
I know nothing.
- Joined
- Apr 17, 2012
- Messages
- 2,257
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- At my computer
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Here's my last project for our elementary school kid, a simple mini-slow sand filter.
Here's the sand.
I was really surprised that the sand was so dark in color. I always thought sand was, well... sandy in color, but maybe that's desert sand. This is lake beach sand. When you look at it closely you can really see how material was pounded into tiny fragments over time. I just hope it works as well as sand colored sand.
Here is the container. It has a handle so it's going to be portable!
Here is the finished build.
This is the simplest build of all, just a 1 inch hole drilled at the bottom and a PVC pipe cut to the right length, total build time 1/2 hour for the empty bucket. The inside will be filled with one layer of rocks, a couple or 3 layers of pea gravel and the rest with beach sand.
Of the 3 builds, this is the one I'm most interested in as I have never seen one in action. We had the beach sand already and I considered building another kind of sand filter but this one won out as I didn't have another pump and this can simply be run off a straw from the waterfall again. I'm interested to see how fast the water will flow and most of all checking out the smell of the sludge when it becomes ripe! Most of all, it's interesting to think that people are using filters like this in other countries and the only difference is the size.
Here's the sand.
I was really surprised that the sand was so dark in color. I always thought sand was, well... sandy in color, but maybe that's desert sand. This is lake beach sand. When you look at it closely you can really see how material was pounded into tiny fragments over time. I just hope it works as well as sand colored sand.
Here is the container. It has a handle so it's going to be portable!
Here is the finished build.
This is the simplest build of all, just a 1 inch hole drilled at the bottom and a PVC pipe cut to the right length, total build time 1/2 hour for the empty bucket. The inside will be filled with one layer of rocks, a couple or 3 layers of pea gravel and the rest with beach sand.
Of the 3 builds, this is the one I'm most interested in as I have never seen one in action. We had the beach sand already and I considered building another kind of sand filter but this one won out as I didn't have another pump and this can simply be run off a straw from the waterfall again. I'm interested to see how fast the water will flow and most of all checking out the smell of the sludge when it becomes ripe! Most of all, it's interesting to think that people are using filters like this in other countries and the only difference is the size.
