• NihilsineNefas@slrpnk.net
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        4 months ago

        Think of it this way; 70% of the planet is water. Of that water only 2.5% is fresh water, 68% of that is held in glaciers. About 1% of the fresh water on earth is liquid.

        That 1% is the absolute maximum quantity of what’s used for drinking, and the steps between ground/reservoir water and the tap in your home involve MASSIVE quantities of electricity and effort to make it so it won’t kill you.

        What you’re suggesting doing is turning the tap on and sending that fresh drinkable water right back into the sewer to generate a miniscule amount of power, since the average tap pressure at 1 bar means you’ll be making sub 100W of power, hardly enough to power the big light in your kitchen if it’s got more than two incandescent bulbs or spotlights, let alone a kettle or a microwave.

      • iegod@lemmy.zip
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        4 months ago

        Depends. If you’re in a metropolitan city modern condo, there’s a good chance water is provided for all by the condo corp. The condo corp pays the city and adjusts the yearly budgets accordingly, which are then used to determine condo fees. So indirectly every resident pays for the water.

      • luciferofastora@feddit.org
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        4 months ago

        To the people their arbitrage would harm because it would result in the landlord ending the free water provision. If you abuse a good thing, even the most good-natured people eventually get fed up and stop providing it, to the detriment of those who used it fairly.

  • nandeEbisu@lemmy.world
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    4 months ago

    For high rises, why not stick a turbine on the outlet for waste water at the bottom of the building? You’ve already spent the energy to pump it up dozens of floors why not recoup some of it when it falls back down?

  • Win012@lemmy.today
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    4 months ago

    You could stick a windmill on top of your car and build up power as you drive to go faster if you drive faster

  • kossa@feddit.org
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    4 months ago

    Fill the water in bottles behind your generator and sell it at cheaper rates to folks who pay for their water…even more profit!

  • EpicFailGuy@lemmy.world
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    4 months ago

    Most apartments with water included in the rent price (Sorry kids, there’s no such thing as “free water”) closely monitor their usage on a per building or floor basis. Whenever they detect irregularities they schedule inspections with the tenants to check for things like leaking toilet valves and such.

    “free water” just means that they’ve calculated the cost of installing the meters and additional plumbing and determined that monitoring global usage and including it in the price of rent is cheaper.

    Source: I have water included in my rent, I pay about $50 more a month than a similar apartment without.

    • LifeInMultipleChoice@lemmy.world
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      4 months ago

      When I moved to Tennessee a few years back I looked all over trying to figure out where our gas bill was. Water/electric/sewage/internet, I actually got through one company now which is kinda neat, but our heater is natural gas, and I haven’t been billed for it yet, which never makes sense to me. I keep wondering if the management company just covers it or something, but I should see a usage bill I would figure somewhere…

      Small towns don’t manage much though. They came by to do an inspection a couple months ago and I was like oh shit, they had not stopped by since I moved in back in 2021. (Guess a new management company absorbed them). I’ve got a chicken coop and put chicken wire up around about 1,000+ square foot and I was wondering what they were going to say about it. They never ended up even going out back. Next year’s problem I guess.

      • ChickenLadyLovesLife@lemmy.world
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        4 months ago

        I bought a house two years ago and had a plumber come out to install a new water heater. He asked me where the water meter was and I had to say “fuck if I know”. He said lots of people just let their water account lapse and then remove the meter and tap directly into the water line in the street and get free water. He assumed that the previous owner of my house had done this; I was pondering whether this was a bad thing or not when he found the actual water meter out in the yard under a metal cover. Good news? Probably not – it turns out my house water is supplied by a very cheap independent local water authority, but they had to go into bankruptcy along with the city and apparently some Saudis are planning to buy it to provide water to grow alfalfa for their racehorses.

    • ChaoticNeutralCzech@feddit.org
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      4 months ago

      Not all places have cold water during summer (did the greedy water company already run a heat exchange there?)

      This would work but don’t use a conventional central heating radiator system: moisture would condense on the radiators and pipes, potentially causing wet floors and walls, and eventually mold. A radiator that deals with moisture well is an indoor AC unit, plus it has a fan, thermostat and remote control, and presumably they’re cheap to get when the more complicated outdoor unit fails. Just pump water through the coolant pipes! The water mains pressure is probably enough. (Don’t get an overly smart one or it will complain about lack of communication with the outdoor unit. Or hack it if you’re good at that.)

      Alternatively, an air-to-water heat exchanger (heat pump whose condenser is submerged and evaporator is a conventional indoor AC unit) is way more practical. With cold water, it will use very little electricity and has all the convenience of AC. The output water can be used as preheated feed into your boiler.

    • Crashumbc@lemmy.world
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      4 months ago

      That’s a really stupid way to do it, you connect the water turbine directly to the faucet. Why water all the tap water pressure.

      • Hacksaw@lemmy.ca
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        4 months ago

        You didn’t read past the first paragraph.

        you can just hook the faucet up to your device, and let the water pressure drive the generator directly. In either case, for a bathtub faucet, this works out to almost 200 watts, or $25 per month

        • Buddahriffic@lemmy.world
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          4 months ago

          Though what you could do is place small turbines in your piping so that any time you use your water for normal uses, it would generate some electricity at the cost of a loss of pressure once it passes through. Though it would be more efficient to just turn down the pumps generating that pressure to the new pressure setting and using the electricity saved there (if you are the one running the pump, water included in rent would transfer some energy to you but lose some overall).

    • CallMeAnAI@lemmy.world
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      4 months ago

      Their ain’t a lease in the country that doesn’t give a complex the right to toss you out for generic reasons.

      And you could waste your time in court, but you’d lose.

      • Scrollone@feddit.it
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        4 months ago

        Also, “unlimited” contracts always have a clause where they can block you if you misuse the service or use way more than an acceptable quantity.

  • √𝛂𝛋𝛆@piefed.world
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    4 months ago

    Unlikely, but if any main power lines run past your walls or floor where they are regularly carrying substantial current, you can probably use a wire coil to light an led or something.