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300-400 might be a little tight unless you already have your lamps. You could probably go complete DIY and get by for that. Home improvement store for res, table, bulkhead fitting, tube etc etc... eBay (be careful)for the lights and ph/tds meters. A couple things you MUST have no matter...

Small cement mixer

Heres a little info I found a while back on converting ec/us to ppm. Well I was going to post a link to the info but it looks like the site no longer exists:neutral: Anyway it's pretty easy, µS and ec are the same thing (some manufactures will list it one way or the other) you just add the...

Have a friend who runs the whole line with good results. Kind of pricey and a little complicated, imo. Personally I like to keep it as simple as possible. If your interested take a look at this link.. You can break down just about any nutrient as long as it has a guaranteed analysis and see...

I think you could use something like this. (top left in photo) XBF1CONN: 1/4" Barb Connector. If you go this route I would use epoxy instead of silicon.. Rain Bird Online Store - Barb Transfer Fittings Just wanted to say thanks Fletch for all the help you provide:joint:

It truly doesn't matter which way you attach it to the light but keep in mind if you attach it the s hook and the string to the lamp you will have to reach for it to adjust the tension. It works off the weight of your hood, with no weight it will always retract. So once you add weight you...

Man you might be able to do even better if your in an unfinished basement. Just vent out the sewer line. Interesting read, thanks for the post..

If your not using any organics and are straight chemical (nutrient salts) you could try dutch master zone. I had a slight problem with some sort of white slime, it was barely noticeable but I could feel it on everything in the res and the walls of the res. I had some DM Zone I use for cloning...

Looks like all is ok? If your ever worried about loosing power in the future you might be able to get by with a couple of these FRABILL MIN-O2-LIFE. If you have any fishing shops near by that is. Frabill Products at Fishing Tackle Plus

You can still experience over watering in a DWC it's actually lack of oxygen so the the roots can still suffocate. I'm not saying thats whats going on but it could be. I've never done dwc but I hear the general rule of thumb is 1watt (air pump) per gallon. Maybe the 12" stone worked well when...

If I remember right green man uses 4" rockwool and waters three times a day with a drip in his veg area. With no rockwool personally I would just start cutting it down an hour at a time till you see the leaves start perking up ie: go to once every two hours and see what they look like. Or...

Sweet setup! BTW, Awesome Job@!@

Great Thread... Heres some useful information I found a while back. A 1000 µS is the same as 1.0 mS. Heres a link to more info on it. TDS and pH Explained | BGHydro