this post was submitted on 05 Jul 2024
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I've searched around and mostly seen people create custom radiator builds attached to their water supply, but that's beyond my skill level and I'm not sure if linking it directly to the water supply via piping would violate the lease or not. Are there any solutions a bit more DIY that I could take advantage of?

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[–] ArcaneGadget@lemmy.world 136 points 4 months ago (1 children)

Almost no matter how you do it, it's going to be a horrible waste of good drinking water to try to extract cooling from the temperature of the water. If you are in a dry climate, make a DIY swamp cooler. Otherwise shell out for a small AC unit.

Also; using your free lease-included water for stuff like that, is probably the quickest way to no longer have water included in your lease...

[–] intensely_human@lemm.ee 3 points 4 months ago (1 children)

So if

  • Using water this way is a waste of water
  • Using water this way will end the policy that permits this use case

Does that mean the fastest way to end the waste is to go ahead with this plan?

[–] ShepherdPie@midwest.social 4 points 4 months ago

Only if that was your sole use of said water otherwise you're just going to pay more for all the water you'd normally use.

[–] Bye@lemmy.world 100 points 4 months ago (1 children)

Use the water pressure to power a turbine generator, then use the electricity from that generator to run a window AC unit

[–] BeatTakeshi@lemmy.world 30 points 4 months ago (1 children)

What a waste of water that would be. Pressure comes just once

[–] BackOnMyBS@lemmy.autism.place 25 points 4 months ago (1 children)

Pressure comes just once

unlike your mom. ha! gottem

[–] Hikermick@lemmy.world 40 points 4 months ago (1 children)

Get a kiddie pool, fill it, soak your feet in it

[–] somethingsnappy@lemmy.world 7 points 4 months ago (1 children)

One of the best feelings in my life was returning to camp, consolidating coolers, and plunging my feet into the water in the leftover water in one of the coolers.

[–] intensely_human@lemm.ee 6 points 4 months ago

One time I took some instant release adderall and some MDMA and played Burnout Revenge on my friend’s playstation.

[–] Thorny_Insight@lemm.ee 39 points 4 months ago* (last edited 4 months ago) (9 children)

Wouldn't be too difficult to jerryrig a system which does that but because it's going to be a huge waste of water I feel morally obligated to not even give you any ideas. Invest in a split AC system instead. They make ones for windows as well.

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[–] Glowstick@lemmy.world 37 points 4 months ago* (last edited 4 months ago)

Is there a reason why you can't get an air conditioner? There's tons of valid reasons why it wouldn't be an option, I'm just wondering what your situation is. Because nothing is ever gonna work anywhere close to as good as an air conditioner. If you can afford even the smallest air conditioner then it'll beat every single diy method in most situations

[–] zephr_c@lemm.ee 32 points 4 months ago

Take a cold bath?

[–] peopleproblems@lemmy.world 31 points 4 months ago (1 children)

Bottle it, sell it for profit, use the profits to buy a better place to live?

[–] Thorny_Insight@lemm.ee 2 points 4 months ago
[–] ironsoap@lemmy.one 21 points 4 months ago (1 children)

As a kid I used tubes, a box fan, a cooler, and bucket with a siphon to cool me down.

You could easily set that up with just the water from a sink and some hardware store parts.

Search for 'diy fan cooling tub copper coils' as a start.

As an example: Homemade AC - The "Copper Coil" Air Cooler! - (Simple "Box Fan ...

Copper coils have the best thermal efficiency, but plastic tubing would also work.

[–] db2@lemmy.world 15 points 4 months ago (5 children)

Get an actual radiator instead of making coils and attach a box fan to it. It's something I was always going to do but never got around to.

Also give consideration to saving at least some of the water to use as "gray water". If you're not familiar with that, it means water you can use for many things but not for eating or drinking.

[–] Lost_My_Mind@lemmy.world 6 points 4 months ago

Pretty sure this guy is an engeneer.

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[–] s_s@lemm.ee 17 points 4 months ago

Start a car detailing business. Use the water to wash the cars.

Use the money from new, low-overhead business to do anything you want.

[–] penquin@lemm.ee 17 points 4 months ago (3 children)

Why not buy a portable AC?

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[–] rekabis@lemmy.ca 16 points 4 months ago (2 children)
  1. Find a pair of vehicle radiators that are as close to a box fan in size as possible.
  2. Zip tie them to either side of the box fan. As the fan blows: it will draw air in through the “second radiator” and blow it out through the “first radiator”.
  3. Hook the out of the first radiator to the in of the second using flexible hoses. Cheap garden hoses might even fit.
  4. Hook other hoses to the in of the first radiator and the out of the second.
  5. Run water on through the first radiator, out of the second. This makes the most efficient heat transfer possible.
[–] PM_Your_Nudes_Please@lemmy.world 12 points 4 months ago

This is exactly what I was going to suggest. Use the water to cool the radiators, and use fans to push hot air through the cool radiators, cooling the air in the process.

This is basically what AC does on a much larger scale. It uses refrigerants, a compressor, and some basic physics to cool the radiators, but it’s still the same basic concept.

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[–] TunaLobster@lemmy.world 15 points 4 months ago
[–] TimewornTraveler@lemm.ee 10 points 4 months ago

we're literally on the precipice of water wars

[–] MadBob@feddit.nl 9 points 4 months ago

If the actual problem is that you yourself are too hot, cool yourself instead. A trick I've picked up working in kitchens, where it's very fucking hot indeed, is to wet your nape and forearms regularly. You can wear a wet hat too. Doesn't really take advantage of the unlimited water but it gets you there.

[–] evranch@lemmy.ca 9 points 4 months ago

Gut an AC from the dump. Replace the condenser with a tube in tube heat exchanger, using your cold water as a heat sink. Brazed plate HX if you're feeling rich. Replace the cap tube with a TXV for better load tracking. Recharge with R290.

T Sure this is even further beyond your skill level but is the best possible way to use a source of cold to chill your apartment. You can locate it anywhere convenient, not just by the window. You could likely get a COP over 5 and be discharging the water in a fairly modest stream at around 30-40C.

[–] slooopy_potatoe@lemm.ee 7 points 4 months ago

Depending on you humidity, you could look into building a swamp-cooler. Sounds weird but works pretty great.

[–] pe1uca@lemmy.pe1uca.dev 7 points 4 months ago (1 children)

Could you get a fountain?
Specially if it spreads the water like rain, it'll help cool the air around, you'd just have to change the water every so often.

If where you live is not very humid you could investigate into swamp coolers.

[–] Lost_My_Mind@lemmy.world 3 points 4 months ago

It baffles me that Walmart sells Arctic Breeze in Ohio.

[–] nexussapphire@lemm.ee 6 points 4 months ago (1 children)

I don't know how big your apartment is but why not a window unit. It's probably the most efficient way to cook your apartment down short of redesigning the building.

[–] Pacattack57@lemmy.world 2 points 4 months ago (4 children)

These are very expensive to run. They can add upwards of $200 to your electric bill.

[–] nexussapphire@lemm.ee 6 points 4 months ago (1 children)

It's either that or maintain a swamp cooler that won't work on humid days and can cause respiratory infection if not cleaned properly. A renters options are very limited and a window unit is a pretty good compromise if you don't want to loose a deposit.

If you want to sit in a sweltering room during a 100° day, no one is stopping you. I've heard it's a pretty typical thing for Europeans anyway. I'm not judging, the guy wants to cool the room down.

[–] ShepherdPie@midwest.social 2 points 4 months ago (1 children)

OP would probably be better suited with a portable AC. Most apartments I know of ban window units because they can fall and hit people if not installed properly.

When getting a portable AC, get one with two hoses as they're much more efficient since they aren't blowing cooled air outside (and sucking hot air in from every gap in the exterior walls.

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[–] Wahots@pawb.social 5 points 4 months ago

Just get a window AC if you have the right type of windows. Otherwise, a dual hose portable heat pump from costco or other reputable source.

[–] trolololol@lemmy.world 4 points 4 months ago

Spray water in front of a fan. Way faster than forcing heat exchange through air to metal.

The reason it works on Winter is that the temperature difference is about 50C or more. On a hot 35C day it would mean the radiator is at most at -15C.. And that's why you'll prefer to stand in front of the fridge that has 6C than a radiator that may run at best 15C water inside.

[–] Skezlarr@aussie.zone 4 points 4 months ago

You could try and make a DIY swamp cooler? There's lots of instructions online for how to make them, and basically the only consumable is water. The only caveat is that they work by drawing hot air in from an open window to evaporate water, so it's not very effective in high humidity or low temperatures.

[–] Brkdncr@lemmy.world 3 points 4 months ago (1 children)

Just run your shower with cold water. Open a window on the otherwise of the house and get a fan to blow air from the bathroom to the open window.

As the water turns from liquid to gas it absorbs heat. As long as it doesn’t get too humid it should feel cool.

[–] Lost_My_Mind@lemmy.world 2 points 4 months ago (2 children)
[–] Brkdncr@lemmy.world 2 points 4 months ago

A dehumidifier would return heat to the room. Best you can do with swamp cooling is draw the humid air out.

[–] ipha@lemm.ee 3 points 4 months ago* (last edited 4 months ago)

I've done this!

Turn the shower on just high enough to get a good mist going then put a box fan on high as close as possible pointing out of the bathroom.

[–] MeanEYE@lemmy.world 3 points 4 months ago
[–] Fedizen@lemmy.world 2 points 4 months ago* (last edited 4 months ago)

Ice machine + box fan

Put ice in a container with a large surface area, aim the fan at it. Empty the container when fully melted. Put ice in all your drinks

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