Results for "application"

Filters Medium 45 minutes 206 👍 1

Do I Need DE in My Pool Filter? Diagnosis & Solutions

I turned to three different pool techs about my 2019 Pentair FNS Plus cartridge system and got three completely different answers about adding DE. My kids spend hours in the pool every day during summer, and I want to make sure the water is as clean and safe as possible for them.

I'm honestly not even 100% sure what type of filter system we have - the previous homeowner left some DE powder in the pool shed, but I don't know if I'm supposed to be using it or not. How do I figure out if my specific filter needs DE, and if so, what's the right way to add it? I just want crystal clear water that's safe for my children to swim in every day.…more

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Salt Water Medium 4-6 hours initial setup 459 👍 1

Can Above Ground Pools Be Salt Water? Complete Guide 2026

Tried following my pool manual that says above ground pools can't handle salt water systems, but keep seeing people online who've successfully converted theirs. What equipment do I need and are there any compatibility issues I should know about? Also heard something about different chemical levels for salt pools - is that true?…more

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Above Ground Medium 2-3 hours research and application 574 👍 14

Above Ground Pool Permit Requirements in Florida 2026

Three contractors quoted me $400 for permit fees to install an above ground pool in Florida and wondering if there's a way around needing one. Florida resident. Do I need a permit? What's the cutoff for size/depth? Don't want to deal with county issues later.…more

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Water Chemistry Medium 45 minutes 483 👍 12

Can Pool Chlorine Clean Concrete? Safe Methods & Alternatives

Between the humidity and recent rain, my concrete pool deck started showing these nasty green algae stains last week and now I'm wondering if pool chlorine can clean them off. My concrete pool deck is absolutely filthy with algae stains and dirt buildup, and nothing seems to work. I've scrubbed until my arms hurt and tried different cleaners, but these green stains just won't budge.

I have tons of pool chlorine sitting around and I'm wondering if I can use that to blast these concrete stains away? I don't want to damage the surface or create some kind of chemical disaster, but I'm running out of options. If chlorine works, what's the right way to dilute it? And honestly, are there better alternatives that might actually get this mess clean without all the guesswork?…more

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Algae Green Pool Medium 15 minutes reading, varies for application 294 👍 1

How Pool Algaecide Works: Complete Chemistry Guide 2026

I replaced three different algaecides in two months, my 20,000-gallon pool still gets green spots weekly, AND my perfect chlorine levels aren't preventing anything. I've tried copper-based and polyquat algaecides, but I'm curious about the actual chemistry behind how these products work to kill algae.

My current chlorine levels are around 2-3 ppm and pH is 7.4, but I still get green spots forming on the walls every few weeks. The pool guy says algaecides work differently than chlorine, but he couldn't explain exactly how. I'd love to understand the science behind what's happening at the cellular level when algaecide contacts algae, and whether I should be relying more on higher chlorine levels or these specialty chemicals for prevention and treatment.…more

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Algae Green Pool Medium 4-6 hours 1,275 👍 16

Can I Shock Pool After Adding Algaecide? Complete Guide

Spent all morning watching my pool turn green with algae patches and now I'm holding bottles of algaecide and shock with no clue which to use first. But I'm not sure about the timing - can I add both in the same day? Should I put the algaecide in first, or does it matter?

Also, if I can use both, how long should I wait between adding them? Don't want to mess up my water chemistry or waste expensive chemicals by doing this wrong!…more

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Water Chemistry Easy 10 minutes 549 👍 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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Water Chemistry Easy 15 minutes to add, 48-72 hours to fully dissolve 481 👍 0

Can You Add Pool Stabilizer During the Day? Best Timing Tips

Walked away from a consultation where my pool guy insisted I can only add stabilizer at night, but something about his reasoning just doesn't sit right with me. Been fighting algae issues and finally realized my stabilizer levels are basically non-existent. I've got cyanuric acid ready to go but I keep second-guessing when to add it.

Is there actually a difference between adding pool stabilizer during the day versus at night? I've heard conflicting advice - some say sunlight messes with it, others say it doesn't matter. I just want to do this right for once and not waste more time and money on chemicals that don't seem to work.…more

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Winterizing Medium 2-3 hours over 2-3 days 377 👍 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 Easy 30 minutes 337 👍 0

How to Raise Pool pH: Complete Guide to pH Increaser

Before I dump chemicals into my pool, I'm trying to decide between adding baking soda or actual pH increaser to bring it up from 7.0. The pool store told me I need to raise it, but they mentioned a couple different chemicals and I'm honestly a bit confused about which one to use.

I've heard about soda ash and baking soda, but I'm not sure what the difference is or how much I should add to my 20,000 gallon pool. I really don't want to mess this up and swing it too far the other way. Should I be adding the chemicals slowly, and do I need to have my pump running when I do it? Any guidance would be really appreciated!…more

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Water Chemistry Medium 45 minutes 296 👍 0

Do I Need Alkalinity in My Pool? Essential Water Chemistry Guide

Staring at this rental property pool that I've never maintained before and the pH keeps bouncing from 6.8 to 8.2 no matter how much acid or soda ash I add. My pool guy mentioned something about alkalinity being important, but honestly at this point I'm wondering if it's just another way to get me to buy more chemicals.

Do I actually NEED to worry about alkalinity levels, or is it just marketing BS? I'm willing to do whatever it takes to get stable water, but I need to know if this is really going to help or if I'm just wasting more money on chemicals that won't fix my pH roller coaster.…more

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Maintenance Medium 2-8 weeks 285 👍 0

Do You Need Approval for a Pool? Permits & Requirements Guide

Planning to drop $15K+ on a 16x32 inground pool but worried about hidden permit costs and legal hoops I haven't budgeted for yet.

I've heard that most pool installations require various permits, but I'm not sure exactly what's needed or how the process works. Do I need building permits? What about electrical work permits since we'll need new wiring for the pump and lighting? Are there specific inspections that have to happen during construction?

I want to make sure I do everything by the book and stay compliant with local regulations. What's the typical approval process like, and are there any requirements I might be overlooking? I'm located in a suburban area if that makes a difference for the regulations.…more

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Leaks Medium 30 minutes to 2 hours 284 👍 0

Can Pool Leaks Be Fixed? Complete Repair Guide 2026

Got a pool that keeps losing water with exposed equipment around the edges — is this dangerous with kids constantly playing in the yard? I've tried those DIY leak detection methods I found online but honestly can't tell if it's the liner, the plumbing, or something else entirely.

Before I throw in the towel and call it quits on pool ownership, I need to know - can pool leaks actually be fixed for good? I don't want some temporary band-aid solution that'll fail again next season. Are there reliable repair methods that will solve this nightmare once and for all, or am I just fooling myself thinking this can be permanently resolved?…more

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Water Chemistry Medium 2–6 weeks (treatment cycle duration) 27 👍 1

Do Bioactive CYA Reducers Actually Work?

During my routine water test this week, I discovered my cyanuric acid is sitting somewhere between 90 and 100 ppm — well above where it should be. Before I start tearing into a partial drain and refill (which means dealing with water costs, my local water restrictions, and rebalancing everything from scratch) — would one of those bioactive or enzyme-based CYA reducer products actually cover this situation and bring my levels down on its own?

I spotted a bottle of what looked like a bacterial/enzyme CYA reducer at the pool supply store, and the label was making some pretty bold claims about breaking down stabilizer without any draining. My pool holds about 18,000 gallons, so a drain-and-refill isn't exactly cheap or simple. The product isn't cheap either, so I want to know if it's genuinely effective before I spend the money.

Basically: does this stuff actually work the way it says it does, is it worth what they're charging for it, and realistically — how long am I looking at before I'd see results?…more

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Algae Green Pool Medium 2-3 days 1,867 👍 21

How Long After Shocking Pool to Add Algaecide? Complete Guide

The pool service guy insists I wait a full 24 hours after shocking before adding algaecide, but that seems excessive when algae keeps spreading. I have two young kids who are eager to get back in the water, and I want to make sure I'm doing this chemical treatment properly.

Should I wait a certain amount of time between the shock treatment and adding the algaecide? I'm also concerned about when the water will be safe for swimming again. What chlorine levels should I be looking for before adding more chemicals, and how do I know when everything is balanced enough for the kids to swim safely?…more

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