Results for "sodium carbonate"

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

Read answer

Water Chemistry Easy 6-8 hours total (30 minutes active work) 695 👍 0

How to Increase Pool pH: Step-by-Step Guide with Dosing

The pH in my 20,000 gallon inground pool is stuck at 7.0-7.2 and I know that's way too low. I've heard about using different chemicals to bring it up, but I'm not sure which one to choose or how much to use. Some people mention soda ash while others swear by baking soda - what's the difference between these options?

I want to make sure I'm doing this right since I've never had to adjust pH before. Should I be adding chemicals gradually or can I fix it all at once? Also, how long should I wait before testing again to see if it worked? My pool is crystal clear otherwise, so I just need to get the chemistry balanced properly.…more

Read answer

Water Chemistry Easy 15 minutes 327 👍 0

Can I Use Pool pH Increaser in My Spa? Safe Chemical Guide

Noticed I'm always running low on spa pH increaser and wondering if this is a dumb question, but can I just use my pool's pH increaser instead? I have both a pool and a hot tub, and I noticed my spa's pH is running low. I have some pH increaser that I bought for my pool - can I use the same product in my hot tub, or do I need to buy separate chemicals?

The pool store didn't really explain if there's a difference between pool and spa chemicals, and I don't want to mess anything up. If I can use the same pH increaser, do I need to adjust how much I add since the hot tub is obviously much smaller than my pool?…more

Read answer

Editor's Pick

Dolphin Nautilus CC Plus Robotic Pool Vacuum (2026)

Wall-climbing scrubber brush and Wi-Fi control — ideal for in-ground pools up to 40 ft. View on Amazon →

Sponsored

Water Chemistry Easy 30 minutes 255 👍 0

How to Raise Pool pH: Step-by-Step Guide for Pool Owners

Woke up to find my pool eating through pH increaser like it's candy and I can't figure out why the levels keep crashing. My pool is approximately 10,000 gallons, and recent testing shows pH has fallen to unacceptable levels requiring adjustment.

What specific chemical should I use, what dosage calculations apply, and what's the proper sequence of steps? I want to ensure I follow proper water chemistry protocols including testing intervals and circulation requirements to achieve accurate results without overcorrection.…more

Read answer

Salt Water Medium 10 minutes 619 👍 0

How Pool Salt Cells Work: Electrolysis Process Explained

I tried figuring out how my neighbor's salt cell creates perfect chlorinated water while mine struggles, but I'm completely lost on how salt actually becomes chlorine.
Like, I get that I add salt to the pool and somehow it becomes chlorine, but what's the actual process happening in there?

Is it some kind of chemical reaction or what? And why does my pH always seem to creep up when the salt cell is running - is that related to whatever's going on inside the cell too?…more

Read answer

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

Read answer

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

Read answer

Water Chemistry Easy 15 minutes 355 👍 0

Do I Need pH Up and Down for Pool? Essential pH Guide

My husband casually mentioned that we're the only neighbors who stock both pH Up AND pH Down, and now I'm suspicious the pool store is playing us. That's like $40-50 just for pH adjustment chemicals alone!

Is this just upselling, or do I actually need to keep both products on hand? My pool seems to drift one way or the other pH-wise, but rarely both directions. Looking for some honest advice from people who aren't trying to empty my wallet every time I walk in for supplies.…more

Read answer

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

Read answer

Water Chemistry Easy 10 minutes 977 👍 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

Read answer

Water Chemistry Easy 15 minutes 443 👍 0

Can I Use Baking Soda for Pool Stabilizer? Chemistry Facts

Planning to add some baking soda to my pool, but there's this sharp chemical tang in the air that makes my eyes water every time I get close. Someone at the pool store mentioned I might need stabilizer, but that stuff is expensive.

I've got a huge box of baking soda at home and I'm wondering - can I just use that instead of buying actual pool stabilizer? They're both white powders that go in the pool, so maybe they do the same thing? I'm really hoping there's a cheaper solution here because I've already spent a fortune this season and I'm getting desperate.…more

Read answer

Product Ranking 8 compared

Best Robotic Pool Cleaners

4.6 (28,500 reviews)

Maintenance Easy 5 minutes 303 👍 0

Pool Glossary: SLAM, Sanitizer, PSI, CYA & Common Pool Terms

I keep seeing pool terms and abbreviations like SLAM, CYA, FC, PSI, sanitizer, backwash, and shock. What do they mean in plain English?…more

Read answer

Winterizing Easy 2-3 hours for complete opening process 207 👍 1

Do I Need a Pool Opening Kit? Spring Pool Startup Guide

Called out to open my 20x40 inground pool after winter and I'm staring at nasty green water wondering if I need an opening kit. Store pushing their $80 opening kit with shock, algaecide, clarifier, etc. Makes it easy but seems pricey. Should I just buy liquid chlorine and acid separately? What's actually worth getting?…more

Read answer

Water Chemistry Medium 15-20 minutes 279 👍 1

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

Read answer

Water Chemistry Easy 15 minutes 228 👍 0

Does Pool pH Naturally Go Up? Chemistry Facts & Solutions

Just last week I balanced everything perfectly to 7.4, but when I tested again a few days later it was already climbing toward 7.8. Is this something that just happens naturally with pools? I'm worried about whether it's safe for the kids to swim when the pH keeps creeping up like this. Should I be adding something regularly to keep it down, and what's the best way to handle this without making the water unsafe?…more

Read answer

Loading more Q&A...

You've seen all 60 Q&A articles!