how much hydroton?

[tchashow]

im doing dwc in 6 inch net pots. how much hydroton would i need? would a 10 liter bag be enough or should i get the 50 liter?

 

[The Hemp Goddess]

Making me do math when I'm high...no guarantees here. Someone else needs to double check my figures .

The 6" net pots I have are 4" deep. That makes them about 113 cu in. One liter is about 61 cu in. So you need about 2 liters per 6" net pot.

I think :48:

 

[diablo_cannabis]

im not sure of the diameter at the bottom of the net pot being that it is tapered. assuming it is 5" and the top 6" the height 4".

r = 5"
R = 6"
h = 4"

the approx volume of the pot is

V = pi*h/12(R²+r²+Rr)

V = (12.56)/12 (36 + 25 + 30)

V = 95.29 cu. in. or 1.5L per pot

but are you gonna be using rockwool also? what size? 1" cubes 4" cubes??
you will need to subtract the volume of the cube.

Volume of the cube:

V = l * w * h

V = 4" * 4" *4"

V= 64 cu. in. or about 1.04L

so the vacant volume for hydroton would be 1.5L - 1.0L = 0.5L per pot.

 

[pcduck]

Depends on how many net pots you will be using.

 

[tchashow]

10 net pots. hey diablo, where'd u get that formula for volume. if it is correct your math is wrong. you have written V = pi*h/3(R²+r²+Rr) and Rr means R x r and it's not 61 it would be 35. i think you added together the totals of R^2 and r^2. but thanx 4 the help everybody. i think im just gonna buy the 50 liter bag as it is cheaper than buying 2 bags of 10 liter hydroton.

 

[diablo_cannabis]

10 net pots. hey diablo, where'd u get that formula for volume. if it is correct your math is wrong. you have written V = pi*h/3(R²+r²+Rr) and Rr means R x r and it's not 61 it would be 35. i think you added together the totals of R^2 and r^2. but thanx 4 the help everybody. i think im just gonna buy the 50 liter bag as it is cheaper than buying 2 bags of 10 liter hydroton.

thanks dude, i worked it out on paper first and then posted it. the parts in red are what i corrected.

the solution is still the same.

good luck bro.

 

[tchashow]

no, thank YOU.