• Decq@lemmy.world
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      10 days ago

      I really don’t understand how this is still not the standard everywhere… The cheapest ones aren’t even that expensive and already way better than the alternative… Don’t think I’ve not showered with one of these in the last 25 years, except for in some kind of social housing projects homes.

      • Synapse@lemmy.world
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        11 days ago

        These things existe for at least 30 years, I don’t understand why anyone would want to use anything else for a shower or bathtub.

          • Synapse@lemmy.world
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            11 days ago

            Definitely not :) I had to get it replaced at my flat this year. There is a filter inside that can get block if you have hard water or debris.

              • Synapse@lemmy.world
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                11 days ago

                Don’t let that stop you getting the ultimate shower experience! My parents also have water with very high calcium at their house and I don’t think they had any problems with the faucet in the past 15 years.

                I live in a rented place, they were doing repairs to the heating systems, several times we had brown water coming out the tap. I bet they installed the cheapest option, plus the debris in the water, this fucked it.

                Just invest in a good thermostatic faucet and never look back !

        • desktop_user@lemmy.blahaj.zone
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          11 days ago

          seems like a smarter solution than what one house I lived in did of just oversizing all the plumbing and having a recirculating hot water pump (probably could help prevent freezing, but it only got to -40 once or twice there) so you could run all faucets, the washer, and the dishwasher and still have pressure at the furthest shower.

    • slippyferret@lemmy.blahaj.zone
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      11 days ago

      When I first moved to Japan over twenty years ago they were already about a hundred years ahead of typical US toilet/bath technology. For me, using one of these faucets where you can just set the temperature by number was like Liko getting beamed from her hut directly onto the damn Enterprise.

      • Synapse@lemmy.world
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        11 days ago

        Growing up in rural France, we had these at home for as far as I can remember. They may not have been the norm 30 years ago, but at least common.

      • spooky2092@lemmy.blahaj.zone
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        11 days ago

        Interesting, so it adjusts the flow of hot/cold in the fly to keep a consistent temp? That’s amazing, thought I imagine it would have the same issue I have at the end of the shower where it’s on 100% hot just to eke out a bit more time

  • fulcrummed@lemmy.world
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    11 days ago

    In seriousness, it’s often about water pressure and how your hot water is fed. If you have very high water pressure normally but a solar hot water system where gravity and input pressure play a role, you’ll naturally have an imbalance on hot and cold. When you turn the handle on the shower you’re lining up two holes in the shower cartridge (in the handle) with the two hot and cold water pipes, the resulting mix comes out a third hole which feeds the shower head. As you turn the handle, one hole opening gets smaller and the other bigger- thereby changing the ratio of hot : cold. When you already have a huge pressure of cold water pumping in, the degree of rotation needed to go from warm/almost just right to PURE HOT WATER is minuscule. Usually the cold will stay pretty cold for about half of the handle range of motion too.

    If water input pressure being high is a problem you can put a reducing valve on your system overall or you can buy Venturi style pumps which add pressure into your hot water system.

    You’ll normally find when it’s pressure imbalance that it’s easier to balance the temp when the tap isn’t open full bore. But who wants a weak-ass shower stream!!

    • addie@feddit.uk
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      11 days ago

      This, exactly. When we redid our bathroom, we went from “immersion tank” hot water with about three metres of pressure behind it, to central heating in a closed system, where both hot and cold have the exact same pressure, about thirty metres head. Went from being basically impossible to have a shower, to being an absolute pleasure where nearly the entire range of the tap gives a useful temperature, and it’s got a right blast of pressure behind it too.

      Another alternative would be an electric shower - since you’re just heating up cold water, the pressure is “always the same”. They tend to be a bit pathetic and crap, tho.

      • LouNeko@lemmy.world
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        11 days ago

        If I remember correctly Mythbusters disproved that. It depends entirely on the way you pull the plug.

        • Tarquinn2049@lemmy.world
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          11 days ago

          Well, essentially, it’s that the coriolis effect, while a real thing, is much weaker than most other factors in play. If everything else is neutralised or near to it, the coriolis would indeed be the remaining decider, but that’s very unlikely in practice.

          • LouNeko@lemmy.world
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            11 days ago

            The coriolis effect has nothing to do with this. The coriolis ‘force’ is not a real force, it’s just the product of things trying to move in a straight line on a rotating surface which to observers on that surface looks like a curve which implies a accelerating force. Usually this applies to things flying through the air, because the are moving independent from the ground. Something that is not a force can not influence something like the water in a thub.
            What people confuse the coriolis force with is the centrifugal force of the earth’s rotation. But this force increases radialy but is tangetialy evenly distributed, which means it’s symmetrical so it doesn’t matter which hemisphere you’re in. It doesn’t point ‘left’ or ‘right’ it only points ‘out’ or ‘up’. Unless you’re right on one of earths rotational axis none of those effects matter.

          • jaybone@lemmy.zip
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            11 days ago

            Otherwise people on the equator, their toilet water wouldn’t spin at all? It would just go straight down, no spin.

            • LouNeko@lemmy.world
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              11 days ago

              Water swirls because it’s the course of ‘least action’ for the draining process. It creates a laminar and continuous volume exchange through a hole. Pipes are usually filled with air which has to be exchanged with water to drain. Physics just optimizes itself to be as efficent as possible with this. You can’t have a perfect draining surface so so currents in one direction will always be a little bit stronger that in the others. Gravity applies a constant acceleration, so this small difference in initial direction will be amplified over time creating a swirl.

              In case of a toilet though, the water is already introduced in a swirl during flushing. So none of the above even matters.

  • Thorry84@feddit.nl
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    11 days ago

    My kitchen faucet is like this. It’s one of those with single little stalk to regulate both temperature and pressure. Not only do you need to get it precisely right for the correction temperature, you also need to get it right for the pressure. Not far enough up and you get a little drizzle, too far and it splashes everywhere. And the stalk is kind of sticky as well, as you push it there is no movement until suddenly it moves. So making small adjustments is really hard

  • drhodl@lemmy.world
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    11 days ago

    You should just move to a more tropical area. Where I live, I only ever use the “Cold” tap and sometimes, even that is too warm.

    • Dozzi92@lemmy.world
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      11 days ago

      That’s how it is for me in the summer, and Jersey ain’t exactly tropical. But it’s kinda nice being able to just turn on the shower and get in. The cold water is likecold in the summers, and it’s usually humid, so a shower with no hot water ends up very refreshing.

  • chonglibloodsport@lemmy.world
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    11 days ago

    The cartridge is likely bad. They get clogged up with lime scale over time and start to perform worse and worse. Either replace the cartridge or the whole faucet itself.

  • 2piradians@lemmy.world
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    11 days ago

    So there are lots of good answers, but there’s one I haven’t seen: The type of shower control in the photo is probably low quality, cheap, meaning the internal parts do a poor job of mixing the hot/cold water.

    Adjusting the water heater may help, but you might also consider upgrading the shower faucet.