• AxExRx@lemmy.world
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    8 hours ago

    Something like this works. Just turn the water off with the spray nozzle, not the handle. https://share.google/1HpxlLwZ6RMXGdMoS

    I used to have a kitchen sink faucet with the mixing handle on the side, that i installed after the 2 tap mixers.

    So the 2 taps controlled hot and cold, which fed into the faucets cold line, and the hot line was capped off, making the handle only control flow, and temp was the 2 knobs. (I did this out of laziness because I didnt want to unsolder and resolder in new fittings)

  • Psiczar@aussie.zone
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    1 day ago

    We have mixer taps in our bathroom sinks and showers. Just lift the handle up and the temp is the same as it was last time you used it.

    • towerful@programming.dev
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      2 days ago

      I’m amazed at the comments explaining incoming water temperature fluctuations and pressures…

      No no, thermostatic tap/faucet mixes waters depending on the output temperature. Ignores all of the variables except the thermal mass (I guess reaction speed) of the thermostatic system.

      I think they are normally like 10x the price of a standard mixer tap tho.
      So, it’s a budget choice

      • Wispy2891@lemmy.world
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        8 hours ago

        When I bought the faucet for my bathtub, the regular one was 35€ while the thermostatic one was 60€. I wonder why they still make the regular ones

      • m0darn@lemmy.ca
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        2 days ago

        Yeah, and obviously if the ‘hot’ water isnt hot, there isn’t anything it can do.

    • whotookkarl@lemmy.dbzer0.com
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      2 days ago

      I have a feeling like you could do a completely mechanical one. Like a way to push it open and a part gets pushed out to stay put so when you open the faucet back up it bumps it and has a little resistance when it first turns so you don’t accidentally move it. Rotate the full way around to reset.

  • khepri@lemmy.world
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    24 hours ago

    I bet it would not be hard to 3d print a little ring with a twisty arrow that you could use to “save” your last handle placement, kinda a neat idea.

  • Chozo@fedia.io
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    2 days ago

    My kitchen faucet does this. It’s a 2-axis lever. Y axis is the temperature adjustment, X axis is flow. As long as you leave it set to the same Y position when you turn it off and on, it’ll be at the “last used combination”.

  • Fermion@mander.xyz
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    2 days ago

    It’s reasonably common for showers to have a mixing valve and a flow rate valve on separate handles. That accomplishes what you want. You just have to remember which is which and only use the flow rate valve to turn on and off.

    More importantly, hot water circulation systems should be more common. It’s the waiting for the cold water in the line to flush out that really makes setting temperature a hassle.

    • relativestranger@feddit.nl
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      1 day ago

      and when the hot water heater is two floors down and the pipe from there runs up unheated parts of the building, it takes a very long time to get even a hint of warmth out of the hot water faucets.

      i’ve lived 3 minutes away from hot water for nearly thirty years now. it sucks. if i ever get money enough to own a house, or choose where i live with little regard to cost, it will have instant hot water (tankless water heaters).

    • balsoft@lemmy.ml
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      2 days ago

      hot water circulation systems should be more common

      That just sounds like a waste of energy. Why not have the water heater right next to your shower, so that there’s no wait? It’s how it was set up in my parents home. Really enjoyed that setup, never had to wait for hot water.

        • balsoft@lemmy.ml
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          1 day ago

          Actually, fuck yeah. My parents also have one of those bad boys:

          picture of a hot water vat

          It’s really nice to bathe in!

          • Empricorn@feddit.nl
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            1 day ago

            As a kid, I saw an old movie with one of these in action. A dude and a lady were victims about to be eaten with the soup, and had to move around in it swishing the liquid and tipping the pot. Good stuff…

        • balsoft@lemmy.ml
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          2 days ago

          That’s still confusing to me. My parents had the water heater tank in the bathroom, between the shower/bath and the sink. The kitchen sink had a separate small water heater.

          • bstix@feddit.dk
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            1 day ago

            It’s really a question of whether you have electric heating or a furnace or district heating.

            It’s not common to have more than one heat exchanger for hot water if you have a furnace or district heating.

            Electrical is much easier. You can just place them anywhere and they don’t cost as much to install. However, electricity is usually more expensive than district heating.

          • pillowtags@lemmy.dbzer0.com
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            2 days ago

            Most houses in the US have a single water heater, usually in the basement or utility room, with pipes running all through the house.

          • boonhet@sopuli.xyz
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            1 day ago

            I once had a place with the separate small water heater for kitchen. Could barely get the dishes done. I prefer having to wait a minute for the bathroom gigantic tank water to make it to the kitchen. Actually my system is way more complex, but that’s irrelevant for this discussion. I have 3 big tanks, two of which are powered by wood (so usually cold unless it’s cold outside and I make fires). By turning some valves on or off I can get water from different tanks to different faucets, though not all combinations are possible. Perks of a 40 year old house that grandpa later made more improvements on, lol

      • BanMe@lemmy.world
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        1 day ago

        Depending on your location the wasted water from letting the faucet run can be much more valuable than the energy needed to maintain a circ system, however install cost is high and the lines need to be entirely insulated so really, new construction works best. I wanted it on my house but I think it’d just drive costs way up, especially with a tankless as it’d be firing all the damn time.

      • CompactFlax@discuss.tchncs.de
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        2 days ago

        On demand recirculating works reasonably well but only for people who tolerate it. Push button, wait 3 min, water hot. It works for me but I know it’s way too much trouble for other people. It saves water and energy.

        • balsoft@lemmy.ml
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          2 days ago

          Oh, yeah, that makes much more sense actually. Now I kinda want that setup, but I bet it’s expensive.

          • lemming741@lemmy.world
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            1 day ago

            The basic recirculation system is less than $300. Controlling the pump is the only thing you would have to add.

            The pump comes with a built-in timer so you could turn the pump off while you sleep but that is not very granular.

            A $15 relay plug will handle it no problem. How you control that relay plug is a rabbit hole- you can use the normie apps and their cloud servers crawling your local network but you get voice commands and remote control with very little effort. Or you can set up home assistant and have the pump run every time you turn on the bathroom lights, and when you unplug your phone from overnight charging, and when your phone connects to the house Wi-Fi upon arrival home from work.

      • brap@lemmy.world
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        2 days ago

        I assume electric showers are pretty rare over there? We’d have like a 16mm2 cable ran to the bathroom for a 10.5kW shower. And with one of those it’s practically instant heat, and enough to heat high flow.

        • JackbyDev@programming.dev
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          1 day ago

          I’ve seen some videos about those, my understanding is that they’re used in warmer climates where the cold water line is already relatively warm year round.

        • Delta_V@lemmy.world
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          2 days ago

          I’ve never seen one. We’ve got on-demand water heaters that feed entire homes, but the electric versions are notorious for breaking a lot. The trend is toward heat pump hot water storage tanks that cool the air around them and put that heat into the water tank.

    • pillowtags@lemmy.dbzer0.com
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      2 days ago

      I thought a hot water circulator would be great, and it kind of is, but it comes with a drawback that I hadn’t considered. If you want cold water from the tap, to fill a glass of water at night for example, you have to wait for that just as long as you would have had to for the hot water before!

      • Fermion@mander.xyz
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        2 days ago

        The solution to that is for a third return line to be run during a new build or remodel, but that’s definitely not a weekend project for most homes.

  • tenacious_mucus@sh.itjust.works
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    2 days ago

    My super basic faucet handles are exactly that…you twist it left-right to set temp and tilt it up-down for pressure from off to full. We just leave it rotated wherever we like it for temp and tilt up to turn on each time to the desired pressure. Our water pressure is always variable, so the amount tilted up varies, but the “rotational temp” almost never needs changing. There’s no fancy thermostatic valve in these like some shower have. There’s even those fancy kitchen sink faucets that remember everything and you just tap them with your hand and they automatically turn on/off to your settings of temp and pressure. I think they are called “touchless faucets”. Pretty sure even Ikea sells one.

    I feel like sink handles like mine are super common, too. I’ve had similar ones in the states and in Europe…

  • AmidFuror@fedia.io
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    2 days ago

    Keep in mind that mixing the levels of hot and cold water isn’t the only factor in the final temperature. It’s also the actual temperature of the water in the pipes. Depending on where your pipes run, the cold water in the pipes may be warmer or cooler than the underground source of the water. The hot water may also have cooled more or less since leaving your hot water heater. Initial temperature may therefore be too hot or cold compared to where it ends after a period of use.

    • Jarix@lemmy.world
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      1 day ago

      Ambient temperature in the room will also affect how hot you want the final temperature to be