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Scam. While you are at it any timeshare you can also recommend? Or get rich quick from bitcoin scheme?
by elwebmaster 3y ago
Scam. While you are at it any timeshare you can also recommend? Or get rich quick from bitcoin scheme?
- engineer_22 3y agoRO works, but like any solution there are pros and cons
- erulabs 3y agoI'm aware it wastes an unfortunate amount of drinkable water. I'm also aware it filters things that might be beneficial, fluoride being one of them. I regret the water usage but I feel it a better alternative to poor health or bottled water, and I use high-fluoride toothpaste to compensate. Are there other cons I'm not aware of?
- gumby 3y agoenergy consumption
- erulabs 3y agoMy RO system works purely on water pressure and requires no electricity. Do you mean the increased pressure causes increased power consumption?
- engineer_22 3y agoWater Pressure is a form of potential energy, like rolling a ball up a hill. The RO system is high pressure on the raw side and low pressure on the clean side - the difference in pressure is the consumed energy.
- bacon_waffle 3y agoI understand that the difference in pressure at the inlet and outlet of the RO system indicates that work was done moving the water through the system, but the RO system is there to fill a glass of water - it's not clear to me why the outlet pressure is relevant. Are you saying that the amount of energy it takes to deliver a given volume of water, varies based on the resistance at the outlet?
- erulabs 3y agoRight that makes sense, but if that’s a serious drain of energy then one would imagine clogged pipes cause dramatically more waste? Seems like small potatoes compared to having clean drinking water.
- engineer_22 3y agoFair point. At utility scale the power requirement is non-trivial. Like anything, there's more than one way to do it, and there's pros and cons to everything. It's up to the owner to decide what they're comfortable with :)
- webworker 3y agoThis poster is in Europe - like most of the rest of the world, they don't have to worry about fluoride removal from water because it's not there in the first place. Most toothpastes make my teeth sensitive. Interestingly, one of the few that doesn't is fluoride-free. There's been no negative difference in the health of my teeth over the last several years of using that. My experience - fluoride overhyped, especially if you have an electric toothbrush.
- erulabs 3y agoYou possibly have healthy enamel. I do not - and fluoride has been shown in many studies to prevent tooth decay. It’s also a heavy metal, so if you don’t have problems with tooth decay I’d say you have nothing to worry about :)
- wkat4242 3y agoI'm from Europe and I got several fluoride treatments as a child, with fluoride gel applied for a few minutes. I'm nearly 50 now and I ony had a couple cavities :) So it seems to work. And it's in some toothpastes too. It doesn't have to be in the water.
- engineer_22 3y agoFluoride isn't a metal!
- _yb2s 3y agoCounter top ro systems like aqua tru waste very little water, and you get to keep the waste water, eg to water plants
- engineer_22 3y agoAs grumby said, the energy consumption. Power is consumed as the water is forced through the membrane. As the membrane blinded off, more energy is required for the same amount of water.