Using an entire wall indoors, we will try hydroponics using PVC pipes.
We are planning to line up five or six PVC pipes horizontally on a wall about 230cm long and 320cm wide, but considering the 300cm long PVC pipes, the water in them, and the weight of the vegetables, we need to build a rather solid frame.
This time, I was lucky (?). This time, I was lucky enough (?) to find some single-pipe pipes thrown around in the garden, so I processed them to make a box-shaped frame for the PVC pipe.To watch the video, click on the link below.
Here you go.
Cut the single-pipe pipes to fit the wall surface.
First, we need to prepare a single pipe.
The size of the wall in the room where we will be growing hydroponics is 230 cm long and 320 cm wide.
Therefore, we will need four 320cm monotubes for the horizontal, six 230cm monotubes for the vertical, including one in the middle for strength, and 15 short monotubes to support the PVC pipes.
At the moment, we’re thinking of installing one PVC pipe per tier, but since there’s a possibility of adding more pipes in the front, we’ll prepare longer single pipes for the sides so that we can expand them later.
Now let’s cut the single pipe.
I found an old-fashioned high-speed cutter in the work shed, so I’ll use this to cut it.
Later, I noticed that the blade of the cutter was so worn out that the diameter of the blade had become very small.
In this condition, it is impossible to cut a single pipe in one go, so I highly recommend replacing the blade with a new one before the work if you can.
Because you are cutting from the top and bottom (or because you are not very good at it), the cutting surface will be rickety.
If this happens, you will have to do a lot of extra work, such as removing burrs with a sander. I actually had to do this, and deburred a total of 25 pieces.
If you don’t have a high-speed cutter, you can also use a pipe cutter, although it is not suitable for mass cutting.
Also, if you bring in a single pipe, it is not possible, but if you buy a single pipe at a home center, they can cut it for you for a fee.
In my neighborhood home center, it was 200 yen per cut.
Put the fixed base on the cut single tube and stand it up.
Now that all the single-pipe pipes have been cut, we will carry them into the room.
First, fit the fixing base to the vertically extending single pipe.
Next, use the orthogonal clamps to temporarily fasten the shortened single-pipe to the vertical pipe, and raise the single-pipe in a “well” shape.
If the pipe is slanted, level it with a leveling tool, and then tighten it with a ratchet.
Make another set for the opposite side.
Use the orthogonal clamps to assemble the tubes into a box shape.
Next, let’s set up the long single pipe that extends horizontally.
I almost died when one of the tubes fell in my direction while I was working on it, because it was just standing on the wall.
It seems that you need to be very careful when you are working. If it had hit me on the head, it would have been pretty bad.
Even though I was dying, I assembled four horizontal single pipes.
If the center of the PVC pipe bends and breaks, it will cause a terrible situation, so we set up a single pipe in the center to support the center of the PVC pipe.
The next step is to assemble short single pipes for both sides according to the height of the PVC pipe.
When you actually put the PVC pipe on top, it is okay if the PVC pipe itself is level.
I put on a protective cap to prevent injury from the cut surface of the single pipe.
I don’t want to get hurt.
Circulating water with a pump
This completes the stand for PVC pipes using a single pipe.
In order to circulate the water in the PVC pipe, we need a water storage tank (or something like that) and a pump.
First, prepare a tank on the floor and fill it with water.
Use the pump to raise the water up to the top PVC pipe, and when the water in the PVC pipe exceeds a certain amount, discharge the water from the drain hose on the other side.
A drain hose for a washing machine is used for the drainage hose.
When the amount of water in the PVC pipe reaches a certain level, it is discharged from the opposite side and repeated for the third and fourth levels.
The water discharged from the bottom PVC pipe returns to the water storage tank, and the pumping pump raises the water to the top PVC pipe.
When the water in the tank runs out, the water cannot be raised, so watch the water level and refill the tank if it seems low.
More PVC pipes can be added depending on the length of the single pipes on both sides.
We can increase the number of PVC pipes that can be installed per tier by lengthening the short single pipes that we just installed on both sides.
However, since this is a hydroponic cultivation using the wall, I think the maximum number of PVC pipes that can be increased is about three, considering the harvest, care of the vegetables, and ease of lighting. This is just my imagination, though.
The length of the PVC pipe is 300cm this time.
If we assume one plant per 30cm, we can plant 30 plants per tier if we install 3 PVC pipes.
If we increase the number of tiers, we will be able to grow 60, 90, or 120 plants, which is a tremendous amount of vegetables indoors.
This time, we were not talking about how to process PVC pipes, but how to make a PVC pipe stand.
But if you want to make it on a smaller scale, you can use wood or Irector, which is much easier.
In any case, I hope this will be helpful to someone who is thinking of starting hydroponics.