They use adiabatic coolers to minimize electrical cost for cooling and maximize cooling capacity. The water isn’t directly used as the cooling fluid. It’s just used to provide evaporative cooling to boost the efficiency of a conventional refrigeration system. I also suspect that many of them are starting to switch to CO2 based refrigeration systems which heavily benefit from adiabatic gas coolers due to the low critical temp of CO2. Without an adiabatic cooler the efficiency of a CO2 based system starts dropping heavily when the ambient temp gets much above 80F.

They could acheive the same results without using water, however their refrigeration systems would need larger gas coolers which would increase their electricity usage.

Yup. We recently hired a guy straight out of the HVAC-R program of our local tech school and he barely had any refrigeration knowledge. Aparently they only teach you barely enough about refrigeration to get an EPA cert and nothing beyond that.

Hell, out of the three new techs we got recently, the one who actually went to tradeschool is the least competent. If you want to get into the trades straight out of highschool you best bet is to just start with a manual labor job for a year or so so you have something to put on a resume that show you can work. After that just apply for a low level position in your trade of choice. Once you’re in your employer should be paying for you to get any certs that you need.

A lot of units now a days have a plastic coating on the discharge gas pipe which mostly prevents the corrosion issue. I am a refrigeration mechanic and while the condensate pan is one of the first areas I check for leaks, it also isn’t the most common area. It probably ranks in third place for frequencybof leaks on reach in units. I probably get 10x more leaks right in the evap coils. People just tend to notice the condensate pan leaks more because they’re on the high pressure side of the system so they’re going to be quick and relatively dramatic. Evap leaks can fly under the radar for years because they’re usually small and only result in gradually worsening performance.

There are also alternative condensate pan designs which use sheets of a wicking felt like material standing up in the condensate pan to increase the surface area for evaporation. That plus the warm air from the condenser fan can often work just as well as the discharge gas heated pans without the corosion issues. The reason that more companies don’t do that is because using the discharge gas for evaporating condensation also means that you’re using the condensation to precool the discharge gas so it slightly boosts the efficiency of the unit.

I just jam my gas cap in the handle.

Yeah, we don’t really use village in the US. A town is anything with a population smaller than about 10,000ish but the exact number will vary with the density and vibe. If you can’t drive across the entire population center (where it’s roughly broken into blocks) within the span of Freebird by Lynyrd Skynyrd (single version not album version) then it’s too big to be a town.

No idea. I just work with acetylene and am familiar with old acetylene gas machines which use calcium carbide to make it. I have no idea what those toxins actually do in large amounts because I’m only used to dealing with them as fairly trace contaminants. I just know enough to know that the acetylene itself shouldn’t be much of an issue but those two chemicals could be.

Good thing it’s surrounded by water.

Joking aside, if it didn’t burst into flames right away then it’s probably fine on the acetylene front. The main hazard of acetylene is just the insane flamability (explosive limits 2.5-100%). But it’s also very soluble in water and isn’t really harmful to the environment on it’s own. There are actually bacteria that can use it as a food source. So the acetylene is just going to be quickly disapated by the wind and disolved into the ocean where it’ll be broken down into harmless products.

The bigger concern is that, with that much calcium carbide reacting, there was likely fairly substantial amounts of phosphine and arsine produced as well. Those are both pretty damn toxic. Normally the amount of both of those produced in a calcium carbide reaction is fairly small but when there are several shipping containers of the stuff reacting then those normally trace contaminants are likely going to actually amount to something.

Technically yes, but in the current political climate phrases like your initial one are frequently said by right wing wackos to alude to various protected classes indirectly. For example. With your initial comment

and as such the system is beneficial to minorities (specific ones, not all).

The first thing that pops into my head isn’t billionares, it’s alex jones ranting about “the jews” and “the world order”, because the way you wrote that comment had a lot in common with the way those people talk when they’re trying to not say the quiet part out loud.

I think they were meaning the billionare class and they just phrased it very suspiciously.

Actually just don’t try to use those stairs at all.

Just because it’s a big company doesn’t mean it isn’t a scam. Just look at how big some MLMs get.

American here and still, WTF‽

If they don’t have a job then how are they going to have money?

How does someone have a vibrant diverse social life with no money?

That really depends on the humidity. I can take a desert 90F or even 100F all day without AC without issue but 80F temps with a 70F dew point absolutely kills me. I lived in my area without AC for years. I never got used to it, I just stopped functioning when it got hot and muggy.

Mine is programmable. In winter it’s set to 65F at night and 68F durring the day. When unoccupied it also goes to 65F. I’d love to be able to set it lower because I love the cold but my pet snake probably wouldn’t appreciate it even with their hot rock and heat lamp. Durring the summer I have it set to 68F while sleeping 72F durring the day and 78F while unoccupied. I don’t shut the AC off while unoccupied because in my area humidity is a much bigger issue in the summer than temperature and removing latent heat takes a long time if you let it build up all day. Currently working on refitting my system for better on demand latent heat removal.

Brand doesn’t matter as long as they’re sugar free.

I’m a refrigeration service tech so the closest thing I have to an office is my work van so the view is constantly changing. But, so far, I have actually wound up attending most of my zoom meetings from customer rooftops so if you count that as my office then my office has some pretty stunning views fairly frequently.

These cops a shitheel attempted murderers for shooting someone who wasn’t a threat to anyone through a fence. They should both be sent to prison and permanently barred from posessing firearms.

But their form in committing that attempted murder isn’t the issue here. As far as mag dumping goes, that’s pretty standard practice when it comes to handguns. With hand guns it’s assumed that you’re going to be using them in a high stress situation where you aren’t going to have a whole lot of time to aim carefully and your adrenaline will be interfering with your aim. Plus handguns are harder to aim accurately and just plain more inaccurate than long guns. In addition, in a high stress situation someone can be shot and not even realize they got shot until the adrenaline wears off or they drop dead. It takes a pretty immediately critical wound to actually stop a human running on adrenaline and, while gunshot wounds are easily lethal given a little bit of time, there are shockingly few areas on the body where a gunshot wound is immediately lethal or immediately crippling. All this means that training for using handguns is to aim center of mass and keep pulling the trigger until your target actually drops or otherwise completely stops being a threat. They are really only meant to be last resort weapons even for cops. If you are planning on shooting someone then you get out a long gun.

The thing to criticize here is that these two subhuman skidmarks decided to immediately gun down someone who was no immediate threat to them or anyone else. Criticizing their form durring that attempted murder just gives you less credibility around those who have firearms training and is irrelevant to the fact that they just decided on murder as plan A. Bringing up their form just deflects from the fact that their reason for shooting the victim could only be that they just wanted to.

Insulation fucking sucks. If your do a lot of work with it though then it’s worth it to just fork over the dough for a proper full face respirator. That makes things so much more comfortable. Even with full gear though you’ll still wind up itching somewhere.

As far as the trades go though, honestly switching to a blue collar job is the most rewarding thing I’ve ever done. I went from IT to being a refrigeration mechanic and I love it. I might not be saving lives all that often but it is nice to be able to know that I am helping real people. Like a call I had recently getting a fridge fixed in time for a small town bar to still have cold beer for St. Pattys day. I spent hours laying on a filthy bar floor with an acetylene torch swapping out a compressor old enough to have seen the collapse of the soviet union. But when I got that thing going again the cheer from the farmers sitting at the bar made my day. Sure I didn’t change any lives, but I left knowing I made people happy.

Of course the bigger emergency jobs can be very high stress. If I get an emergency 1AM callout with a down grocery store rack system and a million dollars of produce spoiling, then I’m definitely sweating a bit. But even then, it’s a good stress. It’s a stress that pushes me into action and my brain into gear. There’s no dread in it. There’s only the knowledge that people are relying on me to solve the problem and there is no one else comming to the rescue. It’s a chance to prove that you can fix anything no matter how creative you need to get with that fix.

The job is often backbreaking. The job is often filthy. The job is often even dangerous. Most days I come home covered in various substances with new scratches, bruises, and/or burns in various locations only to sit down and just ache for a while. But most days I also go to bed happy and content.