Results for "water-safety"

Algae Green Pool 223 👍 3

Why Is the Lincoln Reflecting Pool Green—and Why Not Shock It?

I saw the photos of the Lincoln Memorial Reflecting Pool gone bright green again, days after they finished a big renovation. I run my own backyard pool, and when mine goes green I shock the daylights out of it and it clears up in a couple of days. So why is the government out there pouring hydrogen peroxide and scraping algae by hand off a national monument? Why don't they just shock the thing like the rest of us do? What am I missing?…more

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Water Chemistry Medium 1,172 👍 64

Calcium Hardness Too High But My Fill Water Is Just As Hard

During my last water test, my calcium hardness came back at somewhere around 600 ppm, which I know is way above the recommended range of 200–400 ppm. The frustrating part is that my tap water tests at nearly the same hardness level, so draining and refilling the pool doesn't seem like it would actually help — I'd basically just be starting back at square one with equally hard water. Everything I've read says to partially drain and dilute, but when the numbers on my fill water don't add up to any real improvement, that solution seems pointless.

I'm in a region where hard water is just a fact of life, and I can't find a clear answer on what chemical treatments actually lower calcium hardness directly in the pool. Is there something I'm missing here, or am I stuck just managing the problem rather than fixing it?…more

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Water Chemistry Medium 30 minutes 689 👍 1

Can You Filter Pool Water to Drink? Safe Methods & Risks

Replaced my emergency water storage with a pool filtration system idea since shortages are coming — but am I about to waste money on something unsafe? My pool is about 20,000 gallons and I maintain it with standard chlorine tablets, algaecide, and pH balancers. The chlorine levels are usually around 2-3 ppm, and I add shock treatment weekly.

I've seen some advanced water filtration systems advertised that claim to remove chemicals and contaminants. Would something like reverse osmosis or activated carbon filtration be able to remove all the pool chemicals like chlorine, cyanuric acid, and other sanitizers to make it safe for drinking? I'm concerned about the health risks but need to understand if there are any reliable methods that could work in an emergency situation.…more

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Salt Water Medium 45 minutes 274 👍 0

How Salt Water Pools Stay Clean: Complete Chlorination Guide

My neighborhood pool party is in two weeks and I'm panicking about whether to convert my 20,000 gallon inground pool to salt water since I have no clue how these systems actually work. I've been managing a traditional chlorine pool for years, manually adding liquid chlorine and monitoring my free chlorine levels (usually keeping them between 2-4 ppm), but I'm curious about how salt water pools generate their own sanitizer.

From what I've read, there's some kind of salt chlorine generator involved, but I don't fully grasp the process. Does the salt itself clean the water, or is there still chlorine being produced somehow? I want to make sure I understand the complete chlorination system before making the investment, including what kind of ongoing maintenance and chemistry monitoring would be required to keep everything running properly.…more

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Filters Easy 15 minutes reading 408 👍 0

How Pool Filters Work: Sand, Cartridge & DE Filter Guide

Pool store tried explaining the difference between sand, cartridge, and DE filters for 20 minutes and I walked out more confused than when I went in. My sand filter is dying and I need to pick a replacement but every type seems to have major trade-offs. How do these three actually compare?…more

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Winterizing Easy 1–2 hours 16 👍 1

Where to Drain Pool Water When Winterizing

Nobody told me this part would be confusing. When I started dropping the water level to close the pool for winter, I realized I had absolutely no idea where that water is actually supposed to go. My pool is an inground, and right now I've got a submersible pump running — but I keep stopping because I'm genuinely not sure if I'm about to flood my neighbor's yard or create a problem with the municipality.

The water has to go somewhere, obviously, but there seem to be a few options and I can't figure out which one is actually correct. Is it okay to run it out to the street drain? Can I just let it soak into the yard? Or is there a hookup to the sewer I should be using instead?

I want to do this right and not get a fine or cause a drainage mess. Any guidance would be really helpful before I crank the pump back on.…more

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Salt Water Medium 1-2 hours for testing and treatment 304 👍 0

Can Salt Water Pool Turn Hair Green? Prevention & Solutions

Planning to enjoy our new 25,000 gallon saltwater pool this summer, but I'm completely stumped why my daughter's blonde hair keeps turning green after every swim. I always thought salt water pools were supposed to be gentler than traditional chlorine pools, so I'm confused about what's happening here.

My salt cell has been running normally and chlorine levels test around 2-3 ppm, which seems right. The pH hovers around 7.4 and alkalinity is at 120 ppm. I've tried different shampoos and even bought a clarifying treatment, but the green keeps coming back after she swims. Is there something in salt water that causes this discoloration, or am I missing something with my water chemistry? I really want to figure out how to prevent this from happening again.…more

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Leaks Easy 48 hours 420 👍 0

How to Tell If Your Pool Has a Leak - Step-by-Step Detection

Noticed my pool water dropped three inches this week at 11 PM tonight — need to figure out if there's a leak before my pool guy arrives tomorrow morning. I mean, I know some water evaporates naturally, especially with this heat, but it seems like more than usual.

Is there like a reliable way to test whether it's just normal evaporation or if there's actually a leak? I don't want to call a pool guy and pay a fortune if it turns out to be nothing, but I also don't want to ignore a real problem.…more

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Water Chemistry Medium 2-4 hours 2,295 👍 0

Do Vinyl Pools Need Calcium? Complete CH Guide 2026

Before our big pool party this Saturday, I'm getting completely contradictory advice about whether my vinyl pool even needs calcium added! I keep reading conflicting info online - some sources say vinyl pools don't need calcium at all, others say they do but at different levels than concrete pools. My test strips show I'm sitting around 100 ppm right now and I'm not sure if that's too low or if I even need to worry about it.

I've been dealing with some metal staining on my vinyl liner and wondering if low calcium could be making it worse by causing corrosion. But I'm also terrified of adding too much and ending up with scaling or that dreaded cloudy water that takes forever to clear up. What's the sweet spot for calcium hardness in vinyl pools, and is it really different from other pool types?…more

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Equipment Easy 15 minutes 316 👍 0

How Pool Skimmers Work: Complete Guide to Pool Circulation

About to drop serious cash on a new skimmer system for my 20,000 gallon inground pool, but I'm clueless about how these things actually work — am I getting ripped off? Sometimes I see leaves and oils getting pulled in, and there's a basket that I empty, but I'd love a complete explanation of what's happening from start to finish. Does the skimmer work differently depending on pump speed or water level?…more

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Maintenance Medium 2-3 days for dechlorination 849 👍 12

Can You Use Pool Water for Garden? Safe Irrigation Guide

Last fall when I drained my pool for winter, I couldn't shake the feeling that thousands of gallons going down the drain could've watered my entire garden instead. We grow tomatoes, lettuce, and herbs that my kids love to help harvest and eat.

I know pool water has chlorine and other chemicals, but I'm not sure what levels are safe for plants or if there's a way to make it garden-safe. Are there specific chemical levels I should test for before using it? I want to make sure we're not contaminating the soil or creating any health risks for my family when we eat the vegetables.…more

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Salt Water Easy 15 minutes 250 👍 0

Do Salt Water Pools Use Chlorine? The Complete Truth

Since getting my salt water pool, I've been too embarrassed to ask this probably obvious question: does it actually use chlorine or not? Some say salt water pools are chlorine-free, others say they still have chlorine. Which is it?

Looking at switching from traditional chlorine but want to understand what I'm actually getting into. Does the salt system eliminate chlorine completely or not?…more

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Water Chemistry Medium 2-4 days for complete dissolution 5,557 👍 32

How to Dissolve Pool Stabilizer (CYA) - Complete Guide

I added granular cyanuric acid to my pool and it's just sitting on the bottom instead of dissolving. I have a 20,000 gallon inground pool and my current CYA reading is around 20 ppm - I need to get it up to about 50 ppm. I tried just broadcasting the granules directly into the pool like I do with other chemicals, but they seem to just sink to the bottom and sit there without dissolving much.

I've heard that cyanuric acid is notoriously slow to dissolve compared to other pool chemicals. What's the most effective method to get this stuff into solution? Should I be pre-dissolving it somehow, or is there a specific technique that works better? I want to make sure I'm doing this right and not wasting product or creating hot spots in my pool.…more

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Filters Easy 5 minutes 427 👍 0

How Long to Backwash Pool Sand Filter: Complete Guide

Since it's 11 PM and my sand filter pressure just spiked to dangerous levels — need to backwash this thing before my pump burns out overnight. Right now I'm dealing with my sand filter - the pressure has gone up quite a bit from when I first cleaned it, and I know it's time to backwash.

But here's my question: how long should I actually run the backwash cycle? I don't want to waste a ton of water (my utility bills are already high enough), but I also want to make sure I'm doing it properly. Is there a specific time I should aim for, or some other way to tell when it's done? I'd rather figure this out myself than pay someone else to do basic maintenance.…more

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Maintenance Medium 3-4 hours 270 👍 0

Do You Have to Drain Your Pool in Winter? Complete Guide

Finally getting tired of the third round of conflicting advice about draining my pool this winter and I'm done with all the guesswork. I've seen conflicting information about whether complete drainage is necessary or if partial water removal is sufficient for proper winterization.

Specifically, I need to know the optimal water level in relation to the skimmer system and what additional chemical treatments and equipment protection measures are required. What are the technical specifications for winter water levels, and how do these relate to preventing freeze damage while maintaining water chemistry balance during the off-season?…more

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