Results for "high alkalinity"

Water Chemistry Medium 73 👍 3

How Do I Lower My Pool's Alkalinity Without Dropping pH Too Low?

I tested my pool water and alkalinity is at 150 ppm but my pH is already in the normal range. I don't want to add more acid and crash my pH—how can I lower alkalinity while keeping pH stable?…more

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Water Chemistry Easy 20 minutes 544 👍 0

Why Pool Alkalinity Gets High: 7 Common Causes Explained

Replaced my pool test strips last month but my 3-year-old liquid test kit is still showing crazy high alkalinity readings — time for a new kit? My kids swim almost daily during summer, so I want to make sure the water is safe for them.

I've been trying to figure out what might be making the alkalinity rise so I can prevent it from happening again. Is it something I'm adding to the pool? Could it be our new fountain feature? I just want to understand the common causes so I can keep the water balanced and safe for my family.…more

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Water Chemistry Easy 24 hours 448 👍 0

Can I Swim in High Alkalinity Pool? Safety & Solutions

This morning I'm standing in the pool store aisle staring at bottles of alkalinity reducer with no clue which one I actually need after my pool tested high. They're making it sound like it's dangerous to even dip a toe in the water, but I'm wondering if they're just trying to upsell me again.

Can I actually swim in my pool while the alkalinity is high, or is this a real safety issue? I'm getting tired of spending hundreds every time something is slightly off with my water chemistry. If it's not immediately dangerous, I'd rather take some time to research DIY solutions instead of buying whatever overpriced fix they're pushing this week.…more

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Water Chemistry Medium 2-4 hours 398 👍 0

Can You Shock Pool With High pH? Complete Chemistry Guide

This might be a stupid question but I'm literally at the pool store about to buy shock for my high pH pool — am I wasting my money? My pool is looking a bit cloudy and I know I need to shock it, but when I tested the water, the pH came back really high - like 7.8 or maybe even higher.

The guy at the pool store mentioned something about pH affecting chlorine, but I didn't really understand what he meant. Can I go ahead and shock the pool anyway, or do I absolutely need to get that pH down first? If I have to lower it first, how long do I need to wait? I'm worried about the water getting worse while I'm trying to fix the pH.…more

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Water Chemistry Medium 2-4 hours 224 👍 0

Can Pool pH Be Too High? Problems & How to Lower It

Between my pool test strips screaming dangerously high pH and my kids' eyes burning like fire every swim, something's definitely not adding up here. I tested it yesterday and it's reading around 8.0, which seems higher than normal. The water also looks a bit cloudy even though I've been adding chlorine regularly.

I'm concerned about whether it's safe for the kids to keep swimming. What problems does high pH actually cause, and how can I bring it down safely? I want to make sure the water quality is good before they get back in the pool.…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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Water Chemistry Easy 30 minutes 410 👍 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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Water Chemistry Easy 30 minutes 345 👍 0

How to Increase Pool Alkalinity Fast - Complete Guide 2026

So there's this pool guy telling me to drain and refill my entire pool just because my alkalinity hit zero, but that sounds like expensive overkill for some cloudy water. Every time I try to balance the pH, it just crashes back down within a day or two.

I've got a 20,000 gallon pool and honestly I'm tired of throwing random chemicals at this problem. What's the RIGHT way to get my alkalinity back up to where it should be? I need specific amounts and steps because clearly what I've been doing isn't working.…more

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Water Chemistry Easy 2-3 hours (including circulation time) 523 👍 0

How to Raise Pool Alkalinity: Complete Step-by-Step Guide

Last week my pool's alkalinity dropped and now I'm trying to decide between sodium bicarbonate and alkalinity increaser to get it back up. I've heard baking soda works but I'm not sure how much to use or what the process actually looks like.

Anyone have a step-by-step on the right amount to add and timing? Want to make sure I don't mess this up and end up with more chemistry issues than I started with!…more

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Water Chemistry Medium 2-4 hours 818 👍 0

How to Lower Pool Alkalinity: Complete Step-by-Step Guide

Pulled three different recommendations for my 180 ppm alkalinity—pool guy wants muriatic acid, store pushes sodium bisulfate, and online forums are completely split. Need to get it down to proper range. What chemicals work best and how much should I use? Pool is about 10,000 gallons.…more

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Water Chemistry Medium 2-4 hours 1,775 👍 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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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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Water Chemistry Medium 1,076 👍 63

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 Easy 30 minutes 349 👍 0

Does Pool Chlorine Lighten Hair? Chemistry & Protection Tips

Between being a total pool newbie and having no clue about proper chlorine levels, I'm wondering if I'm accidentally bleaching my hair every time I swim. My daughter has been swimming almost daily and I swear her brown hair is starting to look lighter, almost with blonde streaks. Is this actually happening or am I imagining things?

The pool store told me to keep my chlorine levels between 1-3 ppm, and I've been pretty good about testing and adding chemicals. But now I'm wondering if the chlorine is actually bleaching her hair? If this is really happening, is there anything I can do to prevent it while still keeping the pool safe to swim in?…more

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Above Ground Medium 8-12 hours 496 👍 0

Above Ground Pool Installation: Complete Step-by-Step Guide

I'm installing an above ground pool and need to know about site prep, what order to assemble everything, and how long this will realistically take. Don't want to mess this up.…more

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