DWC is actually proven to be one of the best hydroponic methods for a few reasons. If a pump fails they are still living in still water that is being oxygenated and will survive until you get the system recirculating again.
Exactly how is the water still being oxygenated if the air pump has failed? Is your pump hooked up to a stationary bike or something??
A 1/4 Horse Power Eco Plus water chiller is only 600 bucks and taxes which is well worth every penny.
and it's also consuming an additional 480 watts...
Also if you freeze two liter pop bottles full of water you can drop them in your rez and change em out daily if you only have 1 or 2 buckets that works great.
Yeah that sounds great in theory, but who in the hell wants to constantly freeze, put in, and take out a bunch of friggin' water bottles all day long? lol, no thanks.
I "Highly" recommend DWC...
Sure you do.
Ok smartass I suppose I should have been more clear, for some. Water pumps often fail weather it be temporary or permanently thanks to things as simple as a tiny piece of Hydroton rock or manufactures defaults. A power outage is one thing, you should have a generator or solar power handy to keep simple things like pumps running during an outage. The reason you will still have oxygen in your system is because your air pump will still be working and just before the water pump died it should have been recirculating the system which also adds lots of DO ( dissolved oxygen). Even assuming the air pump failed at the same time which is highly doubtful water will hold its oxygen for up to 48 hours. Yes the 1/4 Hp EcoPlus water chiller takes 480watts of power when used which is not that bad to grow massive healthy plants with NO root rot ever, also if its not your first dwc grow you should know to put thermal insulation around the buckets and cover lids from the light, a/c units, air cooled lights etc, these all help a lot with the power consumption of your chiller because it does not have to run over time to keep the water cool (or even very much).
Also consuming an additional 480watts?!!... If your investing on growing for yourself or patients, illegal or legal they are GREAT reasons to do things RIGHT... If your doing DWC you've made the step in the right direction and chose to do a more complex hydroponic method, so dont cut corners or you'll be stuck with a nasty slim ball for roots and a plant that looks like a 12yr old grew. Water needs to sit around 15 C for dissolved oxygen to reach its highest, oxygen doesnt hold in warm water. Thats why when it gets too warm pathogens grow and root rot occures, yaaack.. Do it right and DWC will AMAZE you.
And for closet guys or some smaller guys on here that do not have huge reservoirs to cool freezing 4 frozen pop bottles is an awesome way to cool the water!, you kidding? you pop two in there and it lasts the day, take the two out, back in the freezer and pop the other two frozen ones in. Trust me, many growers care immensely about their girls, much like myself and freezing a few pop bottles and having less room for crap like Delicio pizzas is minor compared to some of the things ive done for my girls!
Some DWC grows of mine.
https://www.rollitup.org/dwc-bubbleponics/451297-cropalotopots-dwc-grows-vol-1-a.html
https://www.rollitup.org/dwc-bubbleponics/451413-cropolotopots-dwc-grow-vol-2-a.html
Hydroton rock/ air infused table.
https://www.rollitup.org/indoor-growing/275991-3600-watt-dutch-tables-jamaican.html