The Hot Tub Shine Owner's Guide

New to hot tubs? This is your complete walkthrough.

Just bought a house with a hot tub in the backyard? You're exactly who this page is for. No chemistry degree, no jargon — pick your tub's system below and this guide personalizes itself: what to add, how much, when, and what every number means. And when you'd rather not think about any of it, that's literally our job.

Start here

First: which system does your tub run?

Everything on this page tunes itself to your answer. Don't know? That's normal — here's how to tell in ten seconds.

Chlorine granule bottle

Standard Chlorine

No floating dispenser, no salt menu on the control panel — just you and a bottle of granules. The most common setup, and the one most new owners inherit.

Frog @ease floating sanitizing system

Frog @ease

Look for a round floating dispenser with a frog on it. It feeds sanitizer automatically — your readings are SUPPOSED to look low. Big deal to know this.

FreshWater salt system cartridge

FreshWater Salt

Hot Spring or Caldera tub with a salt reading on the control panel and a cartridge under the water line. Softest feel, longest water life, one big calcium rule.

Still not sure? Text a photo of your floater or control panel to 253-468-2888 — we'll identify it in minutes, free.

Just had service?

Your first 24 hours after a Hot Tub Shine visit.

After a drain & fill or maintenance visit, your water is professionally balanced. Here's how to keep it perfect while everything settles in.

  1. Right away — let it circulate

    Keep the cover on and let the jets run their normal filtration cycles. Fresh chemicals need a few hours of circulation to fully blend and register accurately on a test strip.

  2. Before your first soak — quick strip test

    Dip a test strip and confirm sanitizer is in range and pH is 7.2–7.8. If we shocked your water, wait until chlorine drops below 5 ppm before getting in.

  3. After each soak — feed the tub

    On a chlorine tub, add roughly 1 teaspoon of dichlor granules per person after each use, jets on and cover off for 15–20 minutes. Frog @ease and salt systems handle this automatically.

  4. This week — settle into rhythm

    Test 2–3 times this week while the tub finds its balance, then follow the weekly routine below. Bookmark this page — it's your reference between visits.

Know your numbers

The five numbers that run your water.

Drag each slider to your latest test-strip reading — each card tells you exactly where you stand and what to do about it. In plain English.

Always balance in this order: Total Alkalinity → pH → Calcium Hardness → Sanitizer. Alkalinity is the anchor that holds pH steady — fix it first or you'll chase your pH in circles. And never shock water with pH above 7.8: most of the chemical is wasted.
FreshWater 5-Way test strips bottle

Test like a pro

60 seconds, twice a week.

Test strips are your dashboard. We stock FreshWater 5-Way strips — they read bromine, chlorine, alkalinity, pH, and total hardness in one dip.

  1. Dip at elbow depth

    With jets off, dip the strip about 12″ below the surface for 2 seconds. Surface water lies — it's warmer and gassier than the rest of the tub.

  2. Shake once, hold flat

    Remove it pads-up, give one gentle shake, and hold it level. Don't wipe the pads or dunk it twice — both skew the reading.

  3. Read at 15 seconds

    Compare against the bottle chart in natural light. Colors keep developing, so read promptly.

  4. Frog @ease owners: yours is different

    @ease strips have a SmartChlor pad. Darker than the label = you're fine. Lighter = time for a new SmartChlor cartridge. A "low" 0.5–1 ppm reading is normal and correct on this system.

  5. Log the trend

    One reading is a snapshot; three readings are a story. If pH keeps drifting the same direction, that's the trend to fix — or a thing to mention on our next visit.

Before each soak: sanitizer + pH 2–3× weekly: full strip Monthly: phosphates + pro test

Dosing calculator

How much do I actually add?

Tell it your tub size and your test reading — it answers in kitchen measurements. No guesswork, no chemistry degree.

Not sure? Length × width × depth (feet) × 7.5 ≈ gallons. Most 6-person tubs are 350–450.

Your dose

Doses are standard industry guidance rounded to kitchen measures. When your product label disagrees with this calculator, trust the label. Add chemicals with jets on and cover off for 15–20 minutes, and never mix chemicals together before adding.

Your care rhythm

The routine that keeps water perfect.

Fifteen minutes a week is the whole job. Check items off as you go — this page remembers your progress. Print it and stick it near the tub.

Drain & fill planner

Old water can't be fixed — only replaced.

Every soak adds dissolved solids that chemicals can't remove. The pros use a simple formula for when it's time: gallons ÷ daily bathers ÷ 3 = days between drains.

Two people, every other day? That's 1 per day. Daily couple's soak = 2.

days between drains

The Hot Tub Shine shelf

The products this guide talks about.

Everything here rides on our truck. Tap "Add to my list" and it attaches to your next booking — we deliver with the visit.

Frog @ease mineral sanitizing system
Sanitizer System

Frog @ease System

Minerals + SmartChlor holding a gentle 0.5–1 ppm automatically. SmartChlor every ~3–4 weeks, minerals every 4 months.

Spa chlorine granules
Sanitizer

Chlorinating Granules

Dichlor granules — the workhorse. About 1 tsp per person after each soak keeps standard tubs at 1–3 ppm.

Non-chlorine spa shock
Oxidizer

Non-Chlorine Shock (MPS)

Weekly reset button. Burns off oils and spent sanitizer without raising chlorine — soak again in 15 minutes.

FreshWater 5-way test strips
Testing

5-Way Test Strips

Five readings in one 2-second dip. The single most important $15 in hot tub ownership.

Alkalinity increaser
Balancer

Alkalinity Increaser

The anchor. Keeps alkalinity 80–120 ppm so your pH stops bouncing. Always the first correction.

pH increaser
Balancer

pH Increaser

Lifts acidic water back to the 7.4–7.6 sweet spot before it corrodes heaters and stings eyes.

pH decreaser
Balancer

pH Decreaser

Brings high pH down before it clouds water, forms scale, and cripples your chlorine.

Ahh-Some line purge packet
Deep Clean

Ahh-Some Line Purge

Strips hidden biofilm out of the plumbing before a drain & fill. We use it on every deep clean.

Water troubleshooter

What's your water doing?

Tap the symptom. Get the cause, the fix, and an honest answer on when it's a DIY job versus a call-us job.

Go deeper

The full guides, when you want the whole story.

The troubleshooter above gives you the fast answer. These guides go further — every cause explained, sorted from the fixes that don't apply to yours.

Something's wrong with my water

More guides — system troubleshooting, biofilm & purging, drain frequency, and filter care — are on the way.

Northwest water care

Tubbing from Shelton to Seattle.

The Pacific Northwest is glorious hot tub country — and it throws three specific curveballs at your water.

Rain Season

Rain sneaking past the cover drops your pH and feeds phosphates into the water. After big storms, test pH and sanitizer, and keep cover seals in good shape. A tight cover is your cheapest chemical.

Fall Leaves

Leaves and fir needles are algae fertilizer — they spike sanitizer demand and phosphates. Skim promptly, rinse the filter more often in October–November, and consider a monthly phosphate check.

Winter Freezes

Never leave a tub drained and off in freezing weather. Keep it at temperature, watch the water level so pumps never run dry, and brush snow off the cover. Going away in a cold snap? Ask about freeze-season check-ins.

Water care FAQ

The questions we get every week.

How soon can I get in after adding chemicals?

After routine dichlor doses, wait about 20–30 minutes with the jets running and cover off, then confirm chlorine is 5 ppm or below. After MPS (non-chlorine) shock, 15 minutes is typically enough. After a heavy chlorine shock, wait until the strip reads 5 ppm or less — usually several hours to overnight.

My Frog @ease chlorine reading looks low. Is something wrong?

Probably not — that's the system working. SmartChlor holds a steady 0.5–1 ppm, which reads "low" on standard strips. Use the @ease strips: if the pad is darker than the label reference you're fine, lighter means swap the SmartChlor cartridge.

Why does my water smell like chlorine if chlorine is low?

That sharp smell is chloramines — used-up chlorine — not too much of it. The counterintuitive fix is to add sanitizer or shock, which burns off the spent chlorine. Fresh, properly sanitized water barely smells at all. Full explanation, the CDC source behind it, and what a musty smell means instead: Hot Tub Odor That Keeps Coming Back →

How hot is too hot?

104°F is the maximum safe temperature — and 15 minutes is the recommended limit at that heat. Soaking with kids? Keep it 98°F or below and limit them to 10–15 minutes. If you're pregnant, talk to your doctor and stay under 102°F.

Do I really have to drain every 3–4 months?

For standard chlorine tubs, yes — dissolved solids and cyanuric acid build until chemicals stop working, and no additive removes them. The planner above personalizes it to your usage. FreshWater Salt and @ease systems with well-balanced water can stretch considerably longer — up to about a year on salt systems.

Can I use household bleach or dish soap on anything?

Please don't. Bleach wrecks filters and covers, and even a trace of dish soap becomes a foam machine at 102°F. Use spa-specific filter cleaner, a pH-neutral cover cleaner, and rinse swimsuits in plain water instead of detergent. Full breakdown of all four foam types and why defoamer only masks the cause: Why Is My Hot Tub Foaming? →

What does Hot Tub Shine actually do on a maintenance visit?

We test and balance all five numbers, add whatever chemicals are needed, rinse or rotate your filter, wipe the waterline, and check the cover and equipment for early warning signs. You get a note of exactly what we did and what we dosed — so this guide and our visits work off the same playbook.

Rather leave it to us?

Perfect water, zero homework.

Weekly and bi-weekly water care from $80/visit, drain & fill packages, and chemical delivery across the South Sound. This whole page, done for you — with photo updates available on request.