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I've had my MDT-1 timer for a few weeks now and I'm having a problem with it. It is currently running a single EcoPlus 636gph submersible pump and two 600 watt HPS bulbs on Lumatek electronic ballasts. The problem I'm having is when I go to check on the timer in the morning, there has been two...

Can I just use a 12-gauge two foot extension cord plugged in to the Sentinel MDT-1 to power two 600w HPS lights, or do I need to buy their PXM-1 Power Expansion Module to run these two lights? :confused:

Here's the units I'm looking at: Hanna 9813-6 Milwaukee SM802 Bluelab Combo Meter The Hanna appears to be selling for $180, the Milwaukee is going for about $140, and the cheapest I found the Bluelab for is around $230. For those who use these meters, can you relay your experiences...

I have an aeroponic cloner and I am looking for recommendations for the coolest running pump available. The box is a 20 gallon tub holding ten gallons of water/nutes and is running 20 spray nozzles. The current pump is a 535 gph unit - aside from being total overkill for a system of this size...

I have an aeroponic cloner and I am looking for recommendations for the coolest running pump available. The box is a 20 gallon tub holding ten gallons of water/nutes and is running 20 spray nozzles. The current pump is a 535 gph unit - aside from being total overkill for a system of this size...

Not finding what I seek through search. Here's what I have so far: - 20lb steel CO2 cylinder - JBJ dual gauge regulator (tank pressure & output pressure gauges) - 1/4" ID distribution line (water misting line from Home Depot w/10 nozzles) I had been using this system to introduce CO2...

I understand that most people use 1/2" PVC for their small cloner setups. Any good reason not to go with 3/4" PVC? I just happen to have a bunch of fittings, and about 8' of pipe, left over from a reef aquarium plumbing project. Thoughts...concerns?

Am I the only one with a friend like this? Somehow I doubt it, but here's my story... My friend of 14 years recently spent a lot of money to set up a two-chamber grow room in his basement. He's got two rooms that are 10' x 7.5' each for veg and flowering, three 600w HPS lights, one 250w MH...

My main potential grow space is a 9' x 2' closet with 8' ceilings and two bi-fold doors. The 2' depth is a problem as far as lighting goes. How does one light a 2' wide space like this? Cloning will take place elsewhere in the home so I'm looking to do veg and flowering growth in the 9' x 2'...

Hi all - just introducing myself. Haven't grown for the past 8 years or so and am looking to get back into it. Did hydro back then and am looking to get back in with a semi-automated system in about 20 sq. ft. of space. May have another 4 sq. ft. of space if I can consolidate belongings. Just...