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$30 heat solution for small grow space

I am going to add an ice probe to my main res next spring I don't really have a problem with heat where I live my res is outside my tent I pump 160 gph in a 10 gal system so heat is only really a problem right now and it's not a big deal. It's 86 out today and it's 75 on the porch in the shade. I do want it just so I can control the last element of the system. Also is that insulated Mylar around your res where did u get it
 
I completely understand and I don't blame you. I saved for months before I bought my grow box which included the res, light, pumps, and all that together. But, I just ordered a better pump, lines, and 2 stones for my set up for like $15. And the res you can make yourself very cheap. Actually I am pretty sure there is a tutorial on GWE that shows you how to build everything on the cheap. But, right now at this very moment I agree that soil sounds much much easier lol, with a lot less setup and monitoring.
 
I built my own system I can leave for 7 days with out human hands and even then it takes about 10 min to do the change. I wish I know what I know now then I could of done the whole thing for 150 but I did it all twice because I am an idot
 
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Something else I failed to mention I didn't have to adjust the pH one time which for me is very unusual I left the first bucket go almost 2 weeks it only got to 6.32, I'm using cyco nutrients but I don't think that's what stopped the pH from rising I think it was the cold water. And she just showed her first roots bright white , hoping they stay healthy. For even cheaper cooling, I did a short thread on a Peltier cooler it actually cooled better than the ice Probe, I think you could do one Peltier cooler with a power supply for under $50 perfect for a 10 gallon Reservoir.
 

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