Quote Originally Posted by TheGreenFog
Hey, Test Pilot. Do you have proof that your DIY system works (i.e. improves yield). What I mean is did you run a comparison test with two rooms growing side-by-side? I'm sure that's really never been done because anyone setting up a DIY system probably doesn't have the resources to run such a test. Anyway, reason I ask this is that it is debateable whether DIY systems are worth the hassle...and at $130, I personally would spring for the full kit for a little more.



You must have a huge problem with wind resistance.

[attachment=o143502]

hehe


The Fog :rastasmoke;


TheGreenFog, I don't consider this "my system" at all. It's more along the lines of some notes I think may be helpful to others that would like something similar (very very similar) to the Hydrofarm setup.

Basically, in my experiences of building a system there were a few major hurdles that I think are common to most people and these are just my solutions:

1. How the system is actually connected and the purpose of each part
2. Rate/Timing calculations
3. Finding a flowmeter/reg/solenoid for CO2
4. Sizing the flowmeter for your area
5. Finding a suitable electronic monitor from a non-hydro company
6. Lack of good product information (safe working ranges for each piece, fitting sizes, etc..)
7. Doing all of the above without any contact with a "store"

I'm a little tired, I forgot to add about the flowmeter sizing...this is for determining which flowmeter to buy. You generally have a choice of a number of ranges (i.e. 1-10 SCFH, 2-20 SCFH, 0.5-5 SCFH). You want one where the range includes the necessary flowrate you already calculated. So, say for our 1.32 CFH, a 0.5-5 CFH range would be appropriate. Also make sure the range is not _too_ large as accuracy will suffer.