Results for "bacteria"

Salt Water Medium 45 minutes 1,127 👍 0

How Salt Water Pools Kill Bacteria - Chlorine Generation Process

Switched from a chlorine pool to saltwater last year and my pool store says I don't need to worry about bacteria anymore because the salt cell handles everything. That sounds too good to be true. How does a salt water pool actually kill bacteria compared to dumping chlorine tablets in?…more

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Algae Green Pool Medium 3-7 days for full treatment 304 👍 0

Can Pool Algae Cause a Rash? Health Risks & Prevention

Around noon yesterday I finished scrubbing down my pool walls but this morning there's green stuff growing back — could this algae be what's causing the rash on my arms? I've been swimming in it a few times and now I'm wondering if that could be causing the skin irritation I've been experiencing. The pool store told me it's algae and that I need to treat it, but I'm curious about the health risks.

Can pool algae actually cause rashes or other skin problems? I'm worried about my family swimming in it, and I want to understand what I'm dealing with before I start dumping chemicals in. Any guidance on how serious this is and what I should do to fix it would be really appreciated!…more

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Algae Green Pool Easy immediate recognition 489 👍 0

Can Green Pool Water Make You Sick? Health Risks Explained

Nobody believed me when I said our pool looked dangerous until my husband walked outside and said it resembles a literal swamp. I know it looks gross but is green water actually dangerous or just unsightly?

What kind of health problems can you get from swimming in algae water? Should I keep everyone out until it's crystal clear again?…more

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Water Chemistry Easy 30 minutes 211 👍 0

Do Pools Need Chlorine? Essential Pool Sanitizer Guide

Between my neighbor claiming pools don't need chlorine with proper balance, the pool store insisting it's essential, and YouTube giving conflicting advice, I'm completely lost.

Are there other options besides chlorine? I've heard people mention saltwater pools and UV systems - do those work just as well? I want to keep my family safe but also don't want to over-complicate things as a beginner. What's the most reliable way to keep pool water clean and safe?…more

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Water Chemistry Easy 15 minutes 474 👍 0

Does a Chlorine Pool Clean You? Sanitizing Effects Explained

Pulled every trick in the book — tested water chemistry, scrubbed surfaces, shocked twice — but still can't figure out if my 20,000 gallon chlorinated pool actually cleans me. My family swims regularly, and I've been wondering about the actual cleaning effects of chlorinated water on our bodies. I know chlorine is designed to kill bacteria and sanitize the pool water, but does it provide any real sanitizing benefits to swimmers?

Specifically, I'm curious whether the chlorine concentration in properly maintained pools is sufficient to kill germs and bacteria on our skin while we swim. My kids often come out of the pool and think they don't need to shower because "the pool cleaned them," but I'm not sure if that's actually true. Does chlorinated pool water provide genuine sanitizing effects on the human body, or do we still need regular soap and water for proper hygiene after swimming?…more

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Algae Green Pool Medium 2-4 weeks for biological solutions 383 👍 0

Can You Use Pool Algaecide in Pond? Safety & Alternatives

Every time I look at this green algae mess in my pond, I wonder — can I use pool algaecide without killing my fish? Have koi and goldfish. Pool algaecide sitting in garage - can I use it or will it kill my fish? Need quick solution.…more

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Algae Green Pool Medium 3-7 days 259 👍 0

Can Pool Algae Be White? Types & Treatment Guide

The white slime on my pool walls tripled in size after I followed three different YouTube cleaning tutorials. I've been treating it like regular green algae - shocked it multiple times, balanced my chemicals, the whole nine yards. But this white stuff just keeps coming back and it doesn't look like any algae I've dealt with before.

Is white algae even a thing? Or am I dealing with something completely different here? The texture is almost... fluffy? And it seems to stick to surfaces more than regular algae. I'm starting to think I need a different approach but I don't want to keep throwing chemicals at the wrong problem.…more

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Water Chemistry Medium 45 minutes 254 👍 0

How Pool Chlorine Works: Complete Chemistry Guide 2026

Tried avoiding pool chemistry for years but finally planning to tackle understanding how chlorine actually works this Saturday — what basics should I have down first? I know chlorine kills bacteria and algae, but what's actually happening at the molecular level? Does pH really matter that much for it to work properly?

Also keep hearing about cyanuric acid affecting chlorine effectiveness. How does all this chemistry actually fit together?…more

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Above Ground Easy 30 minutes 243 👍 0

Do You Need Chlorine for Above Ground Pool? Complete Guide

Three weeks into researching my new above ground pool and I'm still torn between using traditional chlorine or going completely chlorine-free. I've seen some alternative sanitization systems advertised, and I'm wondering if chlorine is truly required or if there are viable alternatives that can maintain safe water conditions.

Specifically, I need to know if skipping chlorine altogether would compromise water safety and what the actual consequences would be for swimmer health and water quality. What role does chlorine play in preventing bacterial growth and algae formation in above ground pools compared to in-ground systems?…more

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Maintenance Easy 1–2 hours (setup) + ongoing management 1,012 👍 54

Ducks in Your Pool? How to Keep Them Out for Good

Three straight days of rain last week apparently convinced a pair of mallards that my backyard pool is their new favorite pond. Every morning I come out and they're splashing around on the steps and leaving droppings all along the waterline and on the surrounding deck. It's pretty gross to deal with, and I'm starting to wonder whether the water itself is even safe to swim in after all that.

I've heard mixed things about those floating alligator decoys or the big plastic swan deterrents you can buy online — do those actually work, or do ducks wise up to them pretty quickly? I'd rather not spend money on something that only works for a week before they ignore it completely.

My bigger concern right now is honestly the water safety side of things. Is duck waste a real health hazard for swimmers, or am I overthinking it? And if I do need to treat the pool after a duck visit, what's the right way to do that? We have a 20,000-gallon in-ground with a salt chlorinator if that matters.…more

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Water Chemistry Medium 30 minutes 474 👍 0

Does Pool Stabilizer Evaporate? CYA Levels Explained

Woke up determined to finally understand pool chemistry, but now I'm standing in the pool store aisle staring at bottles of cyanuric acid and chlorine stabilizer with no clue which one I actually need. I know chlorine evaporates and needs constant replenishment, but I'm unclear about what happens to stabilizer over time.

Specifically, does CYA evaporate from the pool like chlorine does, or does it remain in solution indefinitely? If it doesn't evaporate, what are the actual mechanisms for removing excess stabilizer when levels get too high? I need to understand this for proper water balance management.…more

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Winterizing Medium 2-3 hours over 2-3 days 376 👍 1

Should You Shock Your Pool Before Winter Closing?

Finally figured out why my neighbor's pool stays crystal clear all winter while mine turned into a swamp last year — is shocking before closing the secret? They're telling me I need to shock before adding winterizing chemicals, but of course they're also trying to sell me their premium shock treatment for twice what I can get it elsewhere.

Is shocking actually necessary before winter closing, or is this just another upsell? If I do need to shock, does the timing matter with when I add the other winterizing chemicals? I'm tired of spending a fortune on pool maintenance when I feel like half of what they recommend is just to boost their profits.…more

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Water Chemistry Medium 45 minutes 249 👍 0

Can Pool Chlorine Make You Sick? Health Effects Explained

Opened my pool this season after adjusting pH levels, switching chlorine brands, and getting professional water testing — but my family still gets red eyes and skin irritation after swimming. We've been experiencing eye irritation and some skin redness after swimming, but I'm also worried about not having enough chlorine to kill bacteria and other nasties.

My latest test results show chlorine at around 5-6 ppm, and my CYA is sitting at about 50 ppm. I've been using liquid chlorine and shocking weekly with calcium hypochlorite. Sometimes the chlorine drops really low between treatments, maybe down to 0.5-1 ppm, especially after heavy use or rain.

What's the sweet spot for chlorine levels to avoid both chemical irritation and harmful bacteria? I want to keep everyone healthy but not sure if I should be targeting higher or lower numbers based on my current CYA level.…more

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Cloudy Water Medium 140 👍 2

Why is my pool cloudy after shocking?

I shocked my pool last night to clear up the green algae, but I woke up this morning to a milky, cloudy mess instead of crystal clear water. I didn't think the shock would make it look worse, but now I'm worried I messed up the chemistry. What caused this cloudiness, and what steps do I need to take to get the water looking right again today?…more

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Maintenance Hard Multi-month project (design, permitting, construction) 51 👍 1

Are Natural Bio Pools Worth It? Costs, Pros & Cons

Looked into this after my neighbor started talking about something called a 'bio pool' or natural swimming pool, and I feel a little silly that I had never heard of it before. Apparently you build a separate zone full of aquatic plants and gravel that cleans the water biologically instead of using chlorine — and I'll be honest, the idea of not dragging home jugs of chemicals every other week sounds pretty amazing. My backyard in Wisconsin is a decent size and I have an existing conventional pool, but our winters are brutal and everything freezes solid.

Is this actually a real thing people are doing, or is it more of a niche experiment? I'm curious how the plant zone actually purifies the water, whether it stays clear and safe to swim in, and whether a cold climate like mine would completely kill the concept. Also, is it realistic to convert what I already have, or would I basically be starting from scratch? I'm worried I'm missing some obvious downside that makes this impractical for most homeowners.…more

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