Results for "pool contamination"

Filters Medium 4-6 hours 869 👍 0

Can You Reuse Pool Filter Sand? Cleaning vs Replacement

Halfway through another messy backwashing session with my gunky 3-year-old sand filter, I'm trying to decide between cleaning it again or just replacing the sand entirely. The sand looks pretty gunky when I backwash, but replacement sand isn't cheap. I've heard some people say you can rinse it thoroughly and reuse it, while others insist fresh sand is the only way to go. What's the real deal here? I don't mind doing the work myself if it'll save some money, but I also don't want to compromise my water quality.…more

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Winterizing Medium 2-4 hours 447 👍 0

Can I Open Pool Cover With Water On It? Safe Removal Guide

Finally facing spring opening and worried it's dangerous to remove my winter pool cover with all that standing water on top while my kids are constantly playing nearby? Can I just pull it off like this or do I need to get the water off first? Don't want to mess up my pool water or damage anything.…more

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Water Chemistry Easy 30 minutes 744 👍 0

Why Pool Alkalinity Gets Low: 7 Common Causes & Solutions

Opened my pool this morning and the alkalinity had crashed again — only happens when it's above 85 degrees but stays perfectly normal during cooler weather. My kids swim in it almost daily during summer, so I'm really concerned about whether this is safe for them.

I'm trying to figure out what's causing this so I can fix it properly. We've had a lot of rain lately, and I've been shocking the pool more often because of increased usage. Could these things be making the alkalinity drop? What are the main reasons pool alkalinity gets low, and should I keep the kids out until I get it balanced again?…more

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Salt Water Easy 30 minutes 373 👍 0

Can Salt Water Pools Make You Sick? Health Risks & Safety

Switched to a saltwater pool two years ago thinking it would be gentler on my family, but my daughter broke out in a rash after swimming last weekend and now I'm second-guessing everything. My neighbor swears her kids get ear infections from their salt pool too. Are saltwater pools actually safer than traditional chlorine, or have I been sold a myth?…more

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Cloudy Water Easy 3-5 days 256 👍 0

How to Clear Cloudy Milky Pool Water After Opening

Nobody warned me that buying this house meant inheriting a pool that looks like a giant glass of milk from the previous owner's neglect. It's not green, just really cloudy and white-ish. I can barely see the bottom of the shallow end. I shocked it when I opened but that was about a week ago. The filter has been running but doesn't seem to be helping much. What's the best way to get this cleared up? I have a sand filter if that matters.…more

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Water Chemistry Medium 15-20 minutes 405 👍 2

Hot Tub & Spa Water Care Guide: Complete Chemistry Manual 2026

Hot tub water care requires maintaining proper pH (7.4-7.6), alkalinity (80-120 ppm), and sanitizer levels while following regular testing and chemical adjustment schedules. Higher temperatures and smaller water volumes make spas more sensitive to chemical imbalances than pools.…more

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Maintenance Easy 1–2 hours (setup) + ongoing management 1,070 👍 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 Easy 30 minutes 1,162 👍 0

How Long After Adding Chlorine Can You Swim? Safe Wait Times

About an hour after that crazy thunderstorm hit, I finally got around to shocking my pool but now I'm completely lost on how long before the kids can jump back in. The pool store told me I need to add chlorine regularly, but they didn't really explain how long I need to wait before it's safe to swim again.

I'm using liquid chlorine for regular maintenance, but I also bought some shock treatment for when the water gets cloudy. Do I need to wait different amounts of time depending on which one I use? I don't want to mess this up and make anyone sick, so any guidance would be really helpful!…more

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Water Chemistry Easy 15 minutes 764 👍 1

Does Pool Calcium Expire? Storage & Shelf Life Guide

Found a half-used bag of calcium hardness increaser in my garage from two seasons ago and wondering if it's still good or if I need to buy fresh. Pool supply store wants $25 for a new bag but this one's been sitting in the heat and cold — does pool calcium actually go bad?…more

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Water Chemistry Medium 2-4 hours initial treatment 647 👍 1

Can You Shock Pool With Liquid Chlorine? Complete Guide

Replaced my pool's chlorine tablets with liquid this season — planning to shock my 10,000 gallon pool Saturday, what supplies do I need ready? Have liquid chlorine on hand but not sure if it's effective for shocking or if I need granular shock instead.

How much liquid chlorine would I need to properly shock? Want to raise chlorine levels by about 10ppm.…more

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Maintenance Medium 2-4 hours for winterization 482 👍 1

How Long Can You Keep a Pool Closed? Complete Guide

During winter I'm trying to decide between keeping my pool closed all season to save on chemicals versus opening it and dealing with the constant money drain from maintenance. Every time I go to the pool store they're trying to upsell me on some expensive treatment or service. I'm thinking about just closing my pool for an extended period to avoid all these costs.

Can I keep it closed for longer than just the winter months? What's the maximum time I can leave it shut down without causing permanent damage? I'd rather do the work myself when I reopen it than keep throwing money at these overpriced pool companies all season long.…more

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Maintenance Easy 45 minutes 326 👍 0

Can You Shock a Pool During the Day? Complete Guide

Around midnight my pool water went from crystal clear to that nasty cloudy green mess, and the pool store insists I have to wait until evening to shock it. I've been shocking my pool during the day when I have time, but it seems like I'm going through way more chemicals than I should be.

Is there a better time to shock that would make my chemicals last longer? I'm trying to cut down on pool maintenance costs and do more of this myself instead of paying the pool guys every month.…more

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Cloudy Water Medium 2-5 days 2,658 👍 1

How to Clear Cloudy Pool Water: Complete Step-by-Step Guide

Pulled off a perfect shock treatment on my old above-ground pool for this exact cloudy water mess, but my new inground pool still looks like milk. I can barely see the bottom and it's honestly embarrassing with summer parties coming up.

I'm pretty sure I need to do something with the chemicals and maybe run the filter more, but I have no idea what the right steps are or how long this is going to take. Should I be testing the water first? Adding chlorine? Help me get my pool back to that beautiful clear blue!…more

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Water Chemistry Easy 10 minutes 1,279 👍 1

How Long Do Pool Chemicals Last? Complete Shelf Life Guide

Somewhere in my garage I've got old pool chemicals from last season, but I can't afford to replace them all — is there a way to test if they're still good for under $20?

Specifically looking for technical specifications on how long liquid chlorine maintains potency versus granular forms, and whether chemicals like sodium bicarbonate and muriatic acid have definitive expiration parameters. Storage conditions are controlled temperature and humidity, so assuming optimal preservation environment.…more

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Water Chemistry Easy 10 minutes 820 👍 2

Does Pool Stabilizer Expire? Shelf Life & Storage Guide

Found some old cyanuric acid in my pool shed and trying to decide between tossing it out and risking expired chemicals on my pool. Been there maybe 2-3 years. Granular stuff looks clumped up from humidity but wondering if it's still good to use.

Does pool stabilizer actually expire or go bad over time? Want to know if I should toss it and buy new or if it's still effective.…more

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