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Holy shit!!! In one fell swoop there you are crapping over everything I've done in the last 15 years x100. Hats off to you, jesus! How come, with the climate you are dealing with an all you're not going water cooled lighting and dropping them right down to the canopy?

I gotta say I'm very tempted to bang x4 600 eye hortilux hps's up there in Fresco water cooled tubes. What do you guys reckon?

How is that exactly? I've got 10 reservoirs. I'd need to buy 10 of them

Which exactly fan will be fine? Also, fine may not cut it. These plants will be practically touching the edge of all the shades. I need this to be overkill to make sure.

I was thinking of using the 10" isomax as they do a 1500m3 and a 2350m3 per hour in 10" size. I figured I'd get the 2350 and force it down the 8" tubes just to be sure. I know it's not the most efficient but it would still probably run at 1500m3 per hour even with the resistance from the tubes...

it's a 900m3 per hour fan and no it's an 8" my tubes are actually 8" too, sorry my mistake. Yeah I've tried rotating it but it just flips it the other way. I don't know why it keeps doing it.

Hi guys. Will this work and will and isomax 900 blowing through x3 8" cool tubes holding 3 x 400hps' be sufficient. Sorry I did write a long post but when trying to upload the pic the program crashed lol.

OK thanks mate. I've just emailed them.

OK thanks guys. I'll have a look into those. Ta

I am looking for the best computer interface system to hook up multiple ph/ec/ temp probes. Something that will cater for about 10 in all. Is there such a device? I have couple of reservoirs for my veg room and 8 res's for my flowering room for perpetual harvest. I want to fit them all with...

I'm using mapito and perlite mix 50/50. Believe it stays very wet for 3 hours or more. Yeah I've resigned myself to getting air stones in there. I'm just perpetual harvest so I have 8 reservoirs. So far though it doesn't seem to be too much of a problem.

Question's in the title really. I can't run it constantly cos the pump heats up nutes too much. All res's are in the grow room so ambients already bring them higher than optimal. I will in the future put an air stone in each res but I've got 8 reservoirs so it's awkward and cash is low ATM...

come on guys?

I'm gonna have to set up multiple drip systems I think. This passive hydro just isn't working very well. I've put off going full hydro due to having to have so many reservoirs and pumps etc due to perpetually harvesting but it's gotta be done. Anyone know how the hell I could plug one of these...

Also, I've got 7 days to get these to grow at least 5" to go into flower and they aren't growing much at all. They're under a 250w metal halide 24/7. I manually feed them hydro nutes. plant magic veg a+b, superthrive, green fuse root, Any recommendations?

I'm using mapito in 1meter high tubes. 3 plants per tube. Each plant is started in a 3" rockwall cube. I'm phing my feeds to around 5.5 - 5.8 cos I noticed the ph keeps coming out high but it still 7.1 when I check the run off. I'm soaking my mapito prior to use in 5.5 ph water and even...

Thankyou mate:-) You are making my life very easy. I'll order it all in the next 10 days. I'm UK though so I'll see if I can source it here. Cheers

Subbed. If I ever get the money together to buy my yacht I'd love to come and take a look at that. Always dreamt of going to South America regardless, that would be the cherry lol.

Of course, it's doable, it's just a bit of a ball ache!

The thing is I have to plumb the RO machine in then drill a hole through the wall, pass a water line some 5 meters across the house to my res. Then because my res is in my grow room it's thermally insulated so I'll have to fit a ball cock and somehow rig the lid of the res to allow the ball cock...