Building My Own Evaporative Cooling Wall (AKA Swamp Cooler)

Another great video. Such an underrated channel.

Used one of these with a big fan behind it on a rig in Oman during the summer, working on the drill floor in 45’C....it was a godsend

Perfect, I followed your dome build and built my 36 ft. 8/5 dome 5-6 years ago. With the temp/humidity swings throughout Alaska’s sometimes long days, I have considered doing this very thing. Thanks for all the great info over the last decade or so!

Maintenance in the poultry industry many years, we found 1. Enclose the top cool pad cover/diffuser completely 2. So the spray bar should be spraying upwards under pressure to diffuse on the top cover (We used regular home style pool pumps) 3. Depending on your water quality, one might find cooling efficiency drop due to salts/calcification, might need to add a descaling agent. < we eventually decommissioned the paper style pads for that reason and installed 8"-10" thick black poly cool pads, additionally a small amount of chlorine (pool pills) in the bottom cool pad catch tank prevented algae. About every 6-8 months, we would hi-pressure wash them to remove dust spiders feathers leaves etc the correct method is to wash from inside /the clean side to the outside so not to force junk buildup into the pad core.

This is awesome. These wall are fantastic during the summer months. I like that you elevated the pads off the bottom, nice water flow down there.

used to build these for industrial applications at my old job loved seeing these types of air handler units come in lol

I've got a fan at work with one of these behind it. It works amazing

That's pretty cool seeing one so big, I've been experimenting with that on a much smaller scale. Thanks for sharing the process!

I lived and worked for 30+ years in the high desert of California and 'swamp' coolers were pretty much all we needed to use. Electricity was too high to afford for air conditioners. There is a porous cloth available to distribute the water across the top of the pads. Biggest problem we faced was the alkali in the water from the hard minerals from our well. The best we could expect was about 3 years for the pads.

Getting ready to buy a greenhouse and was wondering about how I needed to do this I can get the system pretty cheap but wasn’t sure how it needed setup thanks for sharing

It's just crazy how something like this can have such a massive effect. Thank you for sharing this.

What a great idea. Great usage of scraps. It will work great.

20yr master plumber. Instead of cleaner use clear primer it softens the pipe and fitting making assembly much easier. 👍

Kudos! This is GREAT my friend. Using it for your crops is a good idea but expensive unless your using free energy. (solar/wind) With free energy, This has incredible possibilities!

I think you should pin the 8" PVC in place laterally with form stakes on either side of it. You can bailing wire the stakes together, between the pads, for more security. Other than that, nice build. I know you're a data hound, so I'd be curious to see the before and after temps in the greenhouse.

You are an unbelievable person. Thank you for your amazing instructions.

Nice build Rob. Just realised my Patreon bounced due to having a new card when I saw this clip. Back on board now though. 😁👍 Off to check out the update clip over on Patreon now. Cheers.

It's wonderful, chief. I cooled the air with a cooling tower from 40 to 28 at one time.

Evaporative cooling systems are used primarily in dry air climates but also work in humidity at a lower rate. This air conditioning method can be found as early at 2000 years ago most likely more. Far as the treatment of the pads is concerned its easy to keep the build up of algae etc by simple chemical processes used in drinking water. Not only that but its used in ventilated areas that the humidity escapes from continuously. If your concern is mineral build up use a water filter system, if your concern is biological build up use the proper water treatment. These coolers are widely used even to this day for air conditioning.

I clicked on this video as a curious HVAC tech and I have some botanist buddies with greenhouses of their own. Seems like a fun project if it were ever necessary for them.