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  1/24/2012 1:24:00 PM

first let me say,this will work..but only if your mechanically inclined..Texas Hydro was no help whatsoever..they sold me submersible pumps..can't use these in a reservoir...they added 15 degrees of heat load to the water. they were also too large in flow rates(gph). they told me the chiller would put out heat equivalent to a refrigerator. which they implied you could put inside the grow room. in actuality it was 110 degree air which ran 20 hours per day. therefore you have to put the chiller outdoors so you don't heat your room up. but the chiller isn't weather proof, it's made to go indoors. you have to realize the heat has to be transferred somewhere. i paid $1000 for this chiller and its worthless to me. the video guide texas hydro put up is worthless too. it says to use 1/2 inch pex tubing. well my prob was I listened to the video guide, bought all the stuff it said was needed. then drove the 80 miles to where i was to set this up. only to find out the fittings on the light fixture were for poly tubing not pex tubing. my point is this; i spent almost $4000 with texas hydro and everything they told me was either an outright lie or just total ignorance on their part. it took me 6 months of trial and error to get these lights functioning to my satisfaction. this is my set up; 4-1000 watt water cooled fixtures run in parallel, 2 danner inline mag drive pumps, 100 gallon res.,3/4 ton window a/c unit( i took the evaporator coil and put it in the res, and it exhausts the hot air outside)the water temps range from 45-85 during a 12 hour cycle..so if i had it to do over i would only buy the fixtures..the liquid lumens are better than fresca sol because liquid lumens can have a blower added for extra cooling...

  9/19/2011 3:02:00 PM

I purchased this system from Texas Hydro....my intent was to reduce the IR signature to a minimum ( no hot air expelled and cool fixtures )....more lamps and plants in a minimum of space....I did get good results...but mainly through trial and error....with no help from Texas Hydro/Hydrofarm....in fact their recommendations and tutorial were useless...I was led to believe the chiller would put out heat equivalent to a refrigerator...NOT TRUE...under a full load the chiller exhaust temperature would exceed 110 degrees....too hot to have inside your grow room....the unit is indoor rated so you can't put it outside.....submersible water pumps were recommended for the reservoir...one to circulate the water to the fixtures the other to the chiller....I found they add 12-15 degrees of heat load with a 100 gal reservoir....this is critical when you're running 4-1000w lamps....the tutorial recommended 1/2 inch pex tubing for the fixtures even though it won't fit the poly hose barbs....the pump sizes recommended were arbitrary with no basis in fact....pipe size, height, or length... If I had to do it all over again....I would buy the fixtures, light controller, and no-flow switch only....the chiller is way expensive and indoor only....there is much cheaper and practical ways to chill a res....