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A UPS for a computer might work for pumps, but won't have enough reserve to run lighting. Yes, I know what a shotty is... :lol: We have laws about native animal abuse. If Skippy the Bush Kangaroo could give informed consent to get high, I'd get them all stoned stupid, but Skippy can't...

If by 'fan controller' you mean an integrated thermostat and motor speed controller, no. You may not even need the speed controllers, but they are nice to have if you want your fans to be a bit quieter. I would hazard a guess that separately purchased speed controllers & thermostats would be...

The chart is not my doing, rather came from St0ney on gardenscure.com. It is great stuff. :)

yep, 5.8 is the place to be for hydroponics.

You can get air pumps with battery backups, someone brought one to my attention a few weeks ago, damned if I can remember offhand where it could be had from. Something like 28 hours backup at reduced air flow. DWC is about the only system that needs such heroics. Others are OK without...

Unless there's another set of contacts on this thermostat which close when the air temp is above the setpoint (instead of below it as is happening now, suiting a heating appliance), the dude at the electrical shop has indeed given you the wrong thing. Depends upon how good a shopper you are...

yep, that's a very small blower for the application.I'd suggest a passive intake of about 2x the dia of the exhaust, or an intake blower a little closer to the CFM rating of the exhaust. Soon as that power abusing gov you have up there has departed politics, we'll talk. ;)

Thanks for that ND. The yellowing on your leaves is occurring because it's taking too long for the clone to set root and the nutes in the leaves are being consumed. I see yellow leaves when cloning in RW cubes when it has taken more than 10 days for them to root, because I have overwatered...

I'd use the 265CFM on the room exhaust and the 170CFM on the cooltube. no worries, I had a bula bula time in Fiji earlier this year, but unfortunately, it's the first holiday I've had in about 8 yrs... Sorry, this won't work. Air leaving the intake blower will follow the path of least...

Yes, that's probably a P deficiency. Could be caused by an actual lack of P or a pH error. As you see from the chart, P is locked out below 5.8.

Yep! Stem tips go brownish & squishy. Recut the stems and work out a way of not getting the stems quite so wet. Consult the person who was getting the 99% success rate. Clearly, you're missing something from the way that person was doing things. I very frequently got stem rot in aerocloners and...

A bit cool during lights-off, but tolerable. You're looking to maintain 24-26C at all times.

Too much. Use fluoros for seedlings.

It's a fairly simple matter to use a relay (or two) to make a switch that will transfer the output of a single ballast to run one of two lamps. However, keep in mind that the cost of the relays, timer (and power supply for the relay coils if a low voltage coil relay type is selected) may...

Yes you're right, I'm too temperamental. Unsubscribed.

There's any number of different ways to get a bean to crack, you know of at least two! Use whatever works for you. Resist temptation to remove the seed hull. As you've found, it's not a good idea to rush things, you can damage the seed leaves and slow the thing way down.

I was kinda hoping your tray was large enough to suit some pots. If you could fill pots with pellets and put the RW blocks on top of them, when the roots had knit into the pellets, the system could flood the pellets beginning with 5x/lights-on. If you fill the tray with pellets, you can...

Usually when you see wilt occur which is due to overwatering, it's not a one-time event. When plants are drooping it's because there's been some root rot that's been taking a while to destroy enough rootmass such that the foliar mass can't be sufficiently supplied anymore. You say your roots are...

My reflectors are Adjust-A-Wings with cooltubes replacing the socket included with the AAWs.

Wet the perlite thoroughly from the top before plugging a cube in it. This will start the wicking action, assuring there's water in the rootzone, but the tops will dry out. Don't top water in future, only just before plugging the cubes in. Wicking to 2" below the top is ideal. This will assure...