This will be a building report of 2 flowering rooms with cross circulation, water preparation and 20x 400W SON-t pia power by 10x 400W Luxgear in an 4,2x3,8x2,2 meters small room.
The room has a 25A 3x 400V socket. 3 small windows. 2 will be blinded and the one on the image will be used to exhaust warm air.
See the opportunities and don't be scared to do some work,
First I planned how to divide the space for 2 rooms and 900 liter (3x 300liter water tanks) for watering the plants.
Second I placed some small mothers under 3x 400W (see ballasts) because they can grow during building. The
switch panel is mounted at the wall. 3x 32A will power all.
A concrete sole plate for a 3 brick layer wall to support the gypsum paperboard and two doors to enter the two rooms.
At the left side I planned 3x 300liter water tanks to water the plants.
The first row of bricks is in place.
I cleaned up the corner because I want use the clay to level and create a floor.
Now the real works start. To house the 3x 300 liter water tanks I dig a big hole in the clay.
Its almost dry clay and not simple to dig in. But after one day the hole has the right size for 3x 300 liter tanks.
After a day digging the opening is big and deep enough to hold the tanks.
Yes that's true. But it keeps you in shape. I do all myself.
Everyone can learn and understand electric work. Start
simple and you can make it complex as you want. Who k
knows what I'll show after this report.
I am assuming you are going to lay some fresh cement for the floor, but I could be incorrect. Its definitely starting to look like a grow space in there. You may end up with two narrow rooms, but given your style of growing you should still have enough room to get nice yields out of there. Thanks for sharing your process, there is lots to learn in this thread.
Thanks SmokingGun for the reply and thinking. I've chosen an other solution. When you
would make a concrete floor it had to be some 8cm (3") thick and it needed that metal
netting to prevent the concrete to crack. So I came up with this solution.
After leveling the clay a 20mm polystyrene insulation is put on the clay. The clay is not total horizontal.
The water hasto go back in the drain so on 3 meters is 1 cm level difference.
To get a real floor a 18mm OSB panel is put on the polystyrene to spread the pressure and protect the polystyrene against damage.
Now the floor in the first room can be filled with polystyrene and OSB panels.
The floor starts to look like a real floor. Note how small the room is. OSB panel size 250x125mm
Small detail its hard to see the slope but with a small ball you can check ;)
This floor can carry the crates with plants and it won't damage the 1mm pond liner.
Happy you follow and ask. The answer is no or you should consider the
small corridor I create above the tanks as a room. Let me show you how
and why I dig in the tanks.
I place 20mm poly styrene panels as insulator.
You can glue the poly styrene with pu foam from a spray can
One more row before the tanks are put in the gab.
The first tank in place. It fits seamlessly
Job done. All tanks are in place. Fill the corners with pu foam
Later I'll connect the tanks so I can fill them, mix, pump water from 1 into other and ....
Now I'll place a OSB panel on the tanks so I can walk on them. This safes a lot of space
because the tanks or under my feet ;)
Hennep, that corridor is exactly what I was expecting you to build. Things are really coming together pretty quickly in there. Thanks a lot for sharing, this is great work to see.