DIY Pool Care
Know your next step

Know what your pool
needs next.

Use your test kit, enter the readings, and get a plain-English action plan for your pool — right from your phone, poolside. ClearDose helps you see what to adjust first, what can wait, and when your product label is the authority.

Chlorine pools
Bromine pools
Salt pools
No download
This weekend's test results
What your water is doing right now
pH
7.9
High

Add muriatic acid — follow your label dosing

Free Chlorine
0.5 ppm
Low

Shock the pool before next swim session

Total Alkalinity
105 ppm
Good

In range — no action needed

CYA
45 ppm
Good

In range — no action needed

Note: Acid & chlorine doses depend on your specific product — check your label.

Keep me posted

Have ClearDose ready for your next water test.

Leave your email and we'll let you know when you can use ClearDose for your own pool. No sales sequence — just a heads-up when it's ready.

No spam — just a note when ClearDose is ready for your next test.

Why homeowners use it

Straight answers for the water in your pool.

Your test kit gives you the numbers. ClearDose turns them into a sensible next step — without pretending every bottle of pool chemical is the same.

No product to push

ClearDose doesn't sell pool chemicals. Your readings guide the recommendation, not a manufacturer's product line.

Honest about the label

When the dose depends on the strength of the acid or chlorine in your bottle, we point you to the product label instead of guessing.

Ready at poolside

Open ClearDose in your phone's browser while you're holding the test kit. No app store, account, or download.

Reminders

A nudge before a parameter drifts out of range.

Free todayReminders are a Premium feature today.
With PremiumGet a weekly, biweekly, or monthly nudge before pH or chlorine drifts out of range.

When the label matters

Why we don't guess at doses.

If a number decides how much chemical goes in, a careful next step is better than a confident wrong answer.

Your test kit can tell you what the water reads, but it can't tell you how strong the product in your shed is. Liquid chlorine may be 6% available chlorine or 12.75%, and muriatic acid commonly ranges from 15% to 31.45%. The same volume does not mean the same dose from one bottle to the next.

ClearDose handles the parts of water chemistry where precision is safe: target ranges, expected changes, the right order of operations, and how one adjustment affects the next. For acid and chlorine specifically — the two steps where concentration controls the dose — we don't give one universal number. We tell you the step to take and point you to the product label for the amount. The label tells you what is in the jug in your hand.

Checking the label isn't a hedge. It's the safety floor. A wrong calculation can etch plaster, turn a Saturday morning of work into wasted effort, leave you with green water when chlorine is too low, or — at the bad end — put swimmers in water that isn't ready. We'd rather tell you the honest thing (“check your label”) than hand you a confident number that sends you the wrong way. Every recommendation here is meant to stay useful even if you take it one step at a time.

You'll see the same reminder under every sample analysis in our safety note, and in the dose-by-label guidance after your readings. Your product manufacturer is the source of truth for what is in the bottle. ClearDose is the second opinion that helps you decide what to do next without bluffing past the label.

Still have questions? The pool chemistry FAQ covers the questions that come up most often — order of operations, salt vs. chlorine, why pH drifts, and more.

Your next water test

From test kit to next step.

01

Test your water

Use the test kit you already have — strips or liquid — to read your pool's chemistry. ClearDose works with common kits.

02

Enter your readings

Enter pH, chlorine, alkalinity, and any other numbers your kit gives you. Then choose your pool type and size.

03

Get your action plan

See a plain-English order of operations: what to adjust first, how to use your product label, and when to test again.

Read your water

Know what each number means.

From pH to salt level, ClearDose helps you see which reading needs attention, what can wait, and when the product label should decide the dose.

pH

7.2 – 7.6

Most critical — affects every other reading

Chlorine
Bromine
Salt
Free Chlorine

1 – 3 ppm

Your primary sanitizer; tested against CYA

Chlorine
Salt
Free Bromine

3 – 5 ppm

Bromine pools; stable across a wider pH range

Bromine
Total Alkalinity

80 – 120 ppm

pH buffer — keeps adjustments from swinging

Chlorine
Bromine
Salt
Cyanuric Acid (CYA)

30 – 50 ppm

Chlorine stabilizer; affects effective chlorine

Chlorine
Salt
Calcium Hardness

200 – 400 ppm

Prevents plaster etching and scaling

Chlorine
Bromine
Salt
Salt Level

2700 – 3400 ppm

Required for salt chlorine generators

Salt
Combined Chlorine

< 0.5 ppm

Signals chloramines; triggers shock recommendation

Chlorine
Salt

When readings get messy

A clear next step when the numbers don't line up.

Free todayYou get the dose-by-label plan today, plus the opening "why this matters" sentence for any flagged reading.
With PremiumSee what a flagged reading means, how to verify it, and what to watch this week.

ClearDose Premium

Save your pool once, keep every reading in one place, and get a nudge before something drifts.

Premium exists for the things that happen after the first analysis — saving your pool or spa so you can swap into it in one click, keeping every test-strip reading on one timeline across devices, getting a calm nudge before a parameter drifts out of range, reading deeper context on flagged readings, and seeing the trend across the season. The free calculator stays free — pool inputs, water analysis, dose-by-label plan, and the opening safety guidance all stay in Free.

What each tier gives you

  • Save your pool or spa once and pick it up in one click from the calculator.

  • A calm recurring nudge before a parameter drifts, plus a personalized care routine.

  • See trends as the season drifts, plus the full language of a flagged reading.

Free vs Premium tiers

FeatureFreeEssential$9.99Plus$13.99Pro$23.99
Volume calculationPool size and volume calculations run on-device, no account needed.Pool size and volume calculations run on-device, no account needed.Pool size and volume calculations run on-device, no account needed.Pool size and volume calculations run on-device, no account needed.
Basic dosingA dose-by-label plan and the safe order of operations, every time.A dose-by-label plan and the safe order of operations, every time.A dose-by-label plan and the safe order of operations, every time.A dose-by-label plan and the safe order of operations, every time.
Safety guidanceThe opening "why this matters" sentence for any flagged reading.The opening "why this matters" sentence for any flagged reading.The opening "why this matters" sentence for any flagged reading.The opening "why this matters" sentence for any flagged reading.
Save your pool or spaProfiles are a Premium feature today.Save the pool or spa once, then load the right setup next time.Save the pool or spa once, then load the right setup next time.Save the pool or spa once, then load the right setup next time.
Test history on every deviceYou can keep the last single reading on this device only.Log a reading once, then find it on any device you use.Log a reading once, then find it on any device you use.Log a reading once, then find it on any device you use.
Track a spa or hot tubSpa and hot-tub tracking are a Premium feature today.Add a spa, log its chemistry, and keep its water separate from the pool.Add a spa, log its chemistry, and keep its water separate from the pool.Add a spa, log its chemistry, and keep its water separate from the pool.
Recurring care remindersReminders are a Premium feature today.Available in Plus & ProGet a weekly, biweekly, or monthly nudge before pH or chlorine drifts out of range.Get a weekly, biweekly, or monthly nudge before pH or chlorine drifts out of range.
A routine that repeatsThe free calculator does the one-time dose calculation.Available in Plus & ProSchedule the care routine so the next steps are there when you need them.Schedule the care routine so the next steps are there when you need them.
Read the flagged resultYou get the dose-by-label plan today, plus the opening "why this matters" sentence for any flagged reading.Available in ProAvailable in ProSee what a flagged reading means, how to verify it, and what to watch this week.
See the driftTrends are a Premium feature today.Available in ProAvailable in ProSee pH and chlorine trends across the season, one chart per parameter.

Pick the tier that fits you

All three tiers keep the free calculator free — pool inputs, basic results, dosing recommendations, and essential safety guidance never go behind a paywall. Start in Essential if pool and spa profiles are all you need; step up to Plus for recurring reminders, or to Pro when you want trend analysis and the deeper-guidance panel.

Essential

For the weekend pool tester who wants saved profiles and test history without re-entering the basics.

$9.99/ month

Billed monthly. Cancel anytime.

  • Save your pool or spa. Save the pool or spa once, then load the right setup next time.
  • Test history on every device. Log a reading once, then find it on any device you use.
  • Track a spa or hot tub. Add a spa, log its chemistry, and keep its water separate from the pool.
Cancel anytimeMonthly

You'll be redirected to Stripe to complete checkout. Your card never touches ClearDose.

Tier: Essential

Plus
Recommended

For the weekend pool tester who wants reminders and a care routine that keeps the next check from slipping.

$13.99/ month

Billed monthly. Cancel anytime.

  • Recurring care reminders. Get a weekly, biweekly, or monthly nudge before pH or chlorine drifts out of range.
  • A routine that repeats. Schedule the care routine so the next steps are there when you need them.
Cancel anytimeMonthly

You'll be redirected to Stripe to complete checkout. Your card never touches ClearDose.

Tier: Plus

Pro

For the weekend pool tester who wants to spot slow drift and understand a flagged result.

$23.99/ month

Billed monthly. Cancel anytime.

  • Read the flagged result. See what a flagged reading means, how to verify it, and what to watch this week.
  • See the drift. See pH and chlorine trends across the season, one chart per parameter.
Trend analysis + deeper guidanceCancel anytimeMonthly

You'll be redirected to Stripe to complete checkout. Your card never touches ClearDose.

Tier: Pro

Each tier bills monthly on Stripe — your card details never touch ClearDose.

Our promise

  • Brand-neutral — we don't get paid by chemical manufacturers.
  • Your water-test data isn’t sold or shared.
  • Cancel from your Stripe dashboard anytime.
  • No ads, no upsells, no “buy this brand” prompts.
  • Priority support from a real pool owner — not a chatbot.

Premium is powered by Stripe and runs on Polsia’s billing — your card details never touch ClearDose.

Why we built Premium

The free calculator stays free — that’s the original promise and it isn’t changing. Every reading, every dose-by-label recommendation, and the core safety guidance remain free with no account, no install, and no limit. Premium exists for the retention surface: pool and spa profiles that sync across devices, every reading you log on a single timeline, scheduled care reminders, full deeper guidance on flagged readings, and the dashboard that puts it all in one place. The revenue funds the ongoing maintenance of the free tool — the safety language, the parameter ranges, the label-honest dosing copy. Premium does not invent precise dose numbers — for acid and chlorine we still defer to your product label, exactly like the free tool. Whether you start in Essential, Plus, or Pro, the free tier never goes away.

Spa & hot-tub tracking lives in Essential.

Your next water test

Start with the numbers in front of you.

Bring your test kit, open ClearDose on your phone, and work through the readings one at a time. No account or download — just a clear next step and a reminder to follow the label when the bottle decides the dose.