SIP thread -- (Sub-Irrigated Planter)

PDX Joe

PDX Joe

Well-Known Member
Humanrob said:
Have you calculated the total weight of this project? First, you have to remember that you are going to drench the soil, and that through wicking it is going to stay pretty wet (at least the bottom 2/3's of the container, and then varying degrees dryer above that). I'm not sure what a "gallon" of wet soil weighs, water is 8.43lbs/gallon, and I think wet soil is denser than water alone so I imagine it would weigh even more. But as an example, at 8lbs per gallon 90 gallons of WET soil is 720lbs. And that does not include the weight of your res. That is a lot of structural force to be working with -- pushing both down and out. I don't doubt your ingenuity or ability to fabricate things, I just hope your engineering background is taking this all into account. Even if I'm off by a large factor, at half that weight -- 360lbs. -- that's a force to be reckoned with.
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Good point. Don't put it on the second floor!
 
Lightgreen2k

Lightgreen2k

Well-Known Member
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Im going to make half a gallon of my soil and probably get one of these places to test my soil. Hopefully I get it right the first time around..
 
Humanrob

Humanrob

Well-Known Member
I've done some runs at 4000k only start to finish, I was very happy with the results but I've never done a comparison so I'm not sure what the plants would have looked like under different lights. In my newer tent I'm doing a 1/3- 4000k 2/3s- 3500k mix. They are on separate switches so I veg with 4k and flower with both. I like vegging with 4's, keeps the plants more compact.
 
Tim Fox

Tim Fox

Well-Known Member
meangreengrowinmachine said:
I am a total noob to LEDs (I HAVE however watched and re watched nearly all of Growmau5's you tube vids) I decided to just go with an easy 3500K set up for now and see how it goes. thanks for all the input though!
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i have done 3000 start to finish,, and 4000 start to finish,, cant say i noticed any differance in the plants,,, those timber kits are outstanding,, you will love them
 
meangreengrowinmachine

meangreengrowinmachine

Well-Known Member
Tim Fox said:
time to dump the ole dirt out of my sip from the tomato grow last summer,, i hav my light upgrade almost done,, starting my next sip grow right after christmas
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I need to start reamending and cooking soil too! and get sht cleaned up and ready to go for another run. Looking to upgrade my lighting set up gradually... atm I have a 600 watt hood, will be adding the 250 3500k 5 cob to there as well.. I think my plan is going to be to set it up as just a straight bar and use it in addition to the 600, eventually I will buy 2 more (enough?) and then have a total of 15 COBS 750 watts in this will be just in flower. Veg currently is just floro and seems to work ok. aaaaaah long term plans lol
 
Tim Fox

Tim Fox

Well-Known Member
meangreengrowinmachine said:
I need to start reamending and cooking soil too! and get sht cleaned up and ready to go for another run. Looking to upgrade my lighting set up gradually... atm I have a 600 watt hood, will be adding the 250 3500k 5 cob to there as well.. I think my plan is going to be to set it up as just a straight bar and use it in addition to the 600, eventually I will buy 2 more (enough?) and then have a total of 15 COBS 750 watts in this will be just in flower. Veg currently is just floro and seems to work ok. aaaaaah long term plans lol
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how many watts per square foot do you think you will be running on your next grow?
 
Humanrob

Humanrob

Well-Known Member
Tim Fox said:
time to dump the ole dirt out of my sip from the tomato grow last summer,, i hav my light upgrade almost done,, starting my next sip grow right after christmas
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It always makes me nervous to bring things from outside into my tent, do you do anything special to clean it up?

I always had gnat problems when I grew in the house, haven't had any since growing in the garage. As I was sitting here on my computer the other evening killing gnats, I realized they are here because my wife puts all the house plants outside during the summer, and then brings them back in for the winter... the plants, and all the bugs living in the soil.
 
Humanrob

Humanrob

Well-Known Member
meangreengrowinmachine said:
I need to start reamending and cooking soil too! and get sht cleaned up and ready to go for another run. Looking to upgrade my lighting set up gradually... atm I have a 600 watt hood, will be adding the 250 3500k 5 cob to there as well.. I think my plan is going to be to set it up as just a straight bar and use it in addition to the 600, eventually I will buy 2 more (enough?) and then have a total of 15 COBS 750 watts in this will be just in flower. Veg currently is just floro and seems to work ok. aaaaaah long term plans lol
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How big is your grow space?
 
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