Susan Harris4 said:That’s right, you add the granules. And honestly, there isn't any John, Harold, or Solomon to be found around here either. 😁 Don't we all know that there are automated stations out there specifically designed to inject chlorine? I am going to say this one more time because clearly, there is some fundamental misunderstanding happening here: residual chlorine is not used to disinfect pipes or tubing. Once you detect residual chlorine, it serves as a signal that the disinfection process is already complete and adding more is entirely unnecessary. Is it really that difficult to grasp? Before any piping is ever put into service, it undergoes a rigorous disinfection using 20 to 30 milligrams of chlorine, held for a full 24 hours, followed by a thorough cleaning before the lines are finally connected to the main water grid. If you happen to be sitting on some secret, magic-bullet method for the water disinfection process that hasn't even crossed the radar of the industry experts yet, please, do me a favor and share it? My professor and I are all ears, and we would be more than happy to turn that little bit of insider knowledge into a serious payday. 😉😉😉
No, they don't just dump in granules. Seeing residual Cl is just proof that the disinfection worked and that the water usage is steady enough that it isn't just sitting stagnant. It happens all the time where you'll check the nearest hydrant near your house and see, say, 20 ppb of residual Cl, but when you turn on your tap, there’s none left! What do you think happened to it (especially if you haven't been home for a while)? And as for just flipping a switch to put a pipeline into service? It's not that simple or fast. You're seriously mistaken here (regardless of what you and your professor think...).🙂
feralwolf24 said:Thanks, Tyler Morgan3. Just a tiny correction here. Chlorine dioxide has some great marketing behind it, but you don't see it used everywhere. A lot of plants tried switching over, but it didn't really stick; many went back to standard chlorine or hypochlorite (which just turns back into chlorine anyway through disproportionation). The main reason people move away from chlorine dioxide so fast is how quickly it breaks down and the byproducts it leaves behind, like chlorates. Regarding ozone, it's commonly used for oxidation. Around here, we mostly use it to get rid of iron or to oxidize Arsen to make it easier to remove, since you can't pull out Arsen in its 3+ form. A lot of places still use permanganate instead of ozone for that. Ozone is actually perfect for drinking water plants dealing with high organic matter, like humic or fulvic acids, because even small doses can help break those down. We have to be pretty careful with dosing since it's so unstable (we stay under 3 mg/L O3 here), especially since studies on how it affects water chemistry aren't fully settled yet.
I haven't a clue what the smaller water treatment plants are running, because honestly, it all comes down to volume and flow rates. On the massive municipal systems, they just use chlorine and its compounds, and frankly, it works fine. As for ozone? For our specific water, it’s basically overkill and a waste of money. Iron levels are tiny, so it usually just settles in the pipes (you see that sediment flushing out at the hydrants every once in a while). And arsenic? It's practically non-existent. Besides, As 3+ is super unstable anyway and flips to As 6+ pretty fast (thank God, because As 3+ is way more dangerous and toxic!). The real kicker, as far as I know, is that ozone doesn't actually kill off organic molecules entirely; it just shreds them into smaller fragments that hang out in the groundwater, settle, or react, so you're basically just spinning your wheels. Luckily, the American groundwater acts like a perfect natural filter, and we really need to protect it because the quality of our tap water depends entirely on keeping that underground stuff clean. We've got some of the healthiest water in the Western world (second only to Vienna) and we get it with hardly any processing at all!👍 The real question is whether we actually realize how lucky we are and if we even care enough to protect the treasure we've got!🙂
Look, there isn't just one way to disinfect stuff. Different methods hit different microbes or contaminants differently. Chlorine—specifically chlorine dioxide—is hands down the most effective and safest bet. You add enough so that once the job is done, you’re left with a tiny bit of residual free chlorine. That leftover trace is actually proof the water is totally safe to drink; it stays in the system to keep things clean in home plumbing where old, crappy pipes usually cause issues. Ozone? That's mostly for breaking down small organic molecules that charcoal filters can't grab, and it's really meant for low volumes or specific flow rates. For a massive place like New York City, it’s totally unnecessary and a waste of cash. As for those chlorine tablets or granules you see? That's basically Isosan, which you can pick up at a pharmacy for private wells or backyard cisterns. With that stuff, you have to be precise with the dosage based on how much water is in your tank. It is absolutely NOT what they use for municipal water systems! And UV disinfection? Not practical for huge amounts of water like a city's main supply. You'd have to overhaul the entire reservoir area and the city grid, which would send your water bill through the roof. In New York City, the water gets disinfected effectively, and they use other treatments depending on where the water comes from. The amount of residual chlorine is strictly regulated by federal laws and health standards (just Google the EPA guidelines in The New York Times if you don't believe me!). They measure it right on-site, so there's zero chance of it being too high or tasting weird. I'm curious though, where exactly are people seeing this "milky" water, and what is the health inspector saying about it? If you're genuinely worried about your tap, just pay for a professional lab test at your own house. You get to pick exactly which parameters they test for. And for all the skeptics who still insist the water isn't clean? Go ahead, head to the grocery store and choose from the endless aisles of bottled water. Or go buy one of those activated carbon filters and convince yourself there's something in the water that needs removing... just don't forget to change those filters constantly (even more often than the manual says), otherwise, you'll just end up testing the gunk that's been SITTING in the filter itself!
Don't be so naive! And who on earth is claiming ozone disinfection hasn't been tested? There are plenty of studies out there. Look, tap water is perfectly safe to drink—you can chug it all day long without a single worry. That "evil" residual chlorine people freak out about after treatment? It’s at such ridiculously low concentrations that you seriously have nothing to worry about. Plus, just do the math on how much you'd be burning through if you bought bottled water by the gallon! But hey, if you want to throw your money away, go for it. It's your cash, spend it however you like... it just drives me nuts seeing these aggressive ads that basically insinuate tap water is bad, unsafe, or even toxic. What a joke.
Casey Palmer5 said:Water quality is going downhill fast, and honestly, the standards for what counts as "safe" just keep getting lowered... We’re talking about a country that ranks in the top 5 for water resources in all of America, yet our pipes and sewage systems are absolute junk. ... Bottom line? we're totally screwing up our water management.
Bradley Bailey10 said:Since our bodies are basically over 70% water, I honestly think we need to be way more picky about what we're drinking. Like, ten years ago, who even bothered buying bottled water? (Unless you wanted bubbles for a cocktail). Nowadays, either the quality of water has tanked, or people have just finally woken up to the reality of it. And tap water? How safe can you really trust it? Personally, I wouldn't bet the house on it. Then there's bottled stuff—how much processing are we actually talking about here? Is it just filtered through some cheap nylon sock? Plus, let's talk about the packaging. PET plastic is garbage. Period. As for filtration, it all comes down to the filter itself. You’ve got everything from basic mesh junk to high-end setups using silica sand and silver powder. The big issue with standard filters is they don't kill off bacteria, and most of them leave the chlorine right where it is. Basically, filtration helps, sure, but half the time it feels like a total scam to make you feel better. The options are shrinking. Either we find a pure spring or we start making our own clean water at home. There are really only two ways to get truly pure water, and those are reverse osmosis or distillation, both of which you can set up at home. Reverse osmosis is pricier than a distiller, it doesn't totally strip out every single impurity, it wastes a ton of water, and the replacement membranes? Absolute ripoff. They're insanely expensive.
Look, tap water is perfectly fine (assuming it's coming from a municipal system!) because it gets tested daily against hundreds of different parameters following strict US and international standards. The laws here are crystal clear about what's allowed in the water and what happens if even one tiny thing fails inspection. Seriously, just go Google how they handle bacteria or what the legal limit for chlorine is in drinking water. For any normal person, you don't need ANY filters, let alone fancy reverse osmosis or distillation setups! Drinking water shouldn't have bacteria, heavy metals, or organic contaminants... if anything shows up, it's in trace amounts way below the legal threshold. And for the folks who want the deep dive, distilled water isn't even great for regular drinking (especially in large amounts), and I'm sure Bradley Bailey10 can explain why since he clearly thinks he's such an expert on water! DON'T FALL FOR THIS NONSENSE AND DON'T WASTE YOUR MONEY ON TRASH WHEN YOU COULD BE BUYING SOMETHING USEFUL!!!🧐
Hot water, some soap, cotton socks, and maybe some antiperspirant or foot powder... oh, and honestly? Probably some antifungal cream too just to be safe.
You aren't gonna face any consequences, man. It’s a total myth! That "popping" sound? It’s just gas bubbles—carbon dioxide, basically—releasing when a joint shifts. That's the whole deal right there...
Hey everyone. I’ve been dealing with OCD for years now—you know the drill, constantly double-checking if the stove is off, the iron is unplugged, my phone is charged, or if I turned the faucet off... all that stuff. It always hits me hardest at night right before I try to sleep, and the grand finale is checking my alarm about a hundred times just to make sure it's set (even though the red light is literally glowing right in front of my face telling me it's fine!). I’ve spent way too much time researching this, and honestly? I don't think there's some magic pill that just switches it off. From what I can tell, you have to consciously stop yourself from doing those repetitive loops and just grit your teeth through the massive wave of anxiety that follows. You have to face the music. That's what therapists usually suggest, anyway (though personally, I've never actually sat on one of their couches). Last year, I had a few panic attacks—only ever happened while I was driving—and man, it was terrifying. I was actually scared to get behind the wheel, which sucks because I love driving and I've never even been in a wreck. Eventually, I realized how totally irrational it was, so I just decided to ignore the fear and kept driving like normal. I figured, "whatever, let it happen," and honestly? It worked. I haven't had a single attack since. I really believe the key is recognizing it's a disorder. You have to realize it's irrational, fight the urge to perform those compulsions, and accept that the anxiety will spike, but eventually, it'll fade. For me, staying away from meds and doctors is working, and I think I'm finally getting there. Sending good vibes to everyone else out there trying to kick this habit—I know firsthand how absolutely draining and exhausting it is.