What is the correct order for balancing hot tub water?

Always balance Total Alkalinity first, then pH, then Calcium Hardness. Proper balance allows sanitizers like FROG @ease to work correctly and prevents common water problems.

Why does my hot tub water turn green or brown?

Discolored water is often caused by oxidized metals such as iron or copper. Products like Leisure Time Bright & Clear can help remove the tint and restore clarity.

How often should I drain and refill my hot tub?

Most hot tubs benefit from a drain and refill every 3–4 months, or sooner if water becomes difficult to manage, foamy, or dull.

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How to Start Up and Maintain a Hot Tub with FROG® @ease®

Q: Do I still need to shock my hot tub if I use FROG @ease?

Yes. While FROG @ease handles daily sanitizing, periodic oxidizing shock helps remove oils, lotions, and organic contaminants that can affect water clarity.

This step-by-step guide is designed for new hot tub owners who want clear, practical guidance without unnecessary complexity. We’ll walk through filling your spa correctly, preventing metal and water-quality issues, balancing chemistry the right way, maintaining consistent sanitation, and establishing a simple weekly care routine.

Big rule: Balance your water first — sanitizer comes second. Most hot tub problems aren’t sanitizer failures; they’re water balance problems.

Tip: Bookmark this page. Most new owners reference it several times during their first month of ownership.

Quick Start Summary (bookmark this):

Fill the spa through a pre-filter.
Treat metals and phosphates early if needed.
Balance water in order: alkalinity → pH → hardness.
Install your sanitizer system (such as FROG @ease).
Follow a simple weekly routine and drain/refill when water becomes hard to manage.

Step 1: Prep Before You Fill

Quick checklist

Rinse/clean the filter(s) (or install new filters).
Make sure all jets are open and valves are set normally.
Confirm drain is closed and pump unions look snug and pump drain plugs are installed (no obvious leaks).
Have your test strips and basic balancing chemicals ready.

Pro move: If the spa is brand new or has been sitting, a plumbing purge before refill can help. At minimum, plan to use a pipe & jet cleaner at your first drain/refill.

Step 2: Fill the Spa the Right Way

Use a hose pre-filter

Filling through a pre-filter helps reduce sediment, metals, and “mystery stuff” that can make balancing harder. If you’re on a well, or you’ve ever had stains, it’s especially worth it.

Fill through the filter area (when possible)

Many spas fill best through the filter compartment because it helps prevent air locks and primes the pump. If your manufacturer recommends a different method, follow their instructions.

When you’re done filling: Turn power on, run jets, and confirm good flow. If you hear the pump running but there’s no water movement, shut power off and prime the pump per your spa manual.

Step 3: Handle Metals & Phosphates Early

Metals (iron, copper, manganese)

If your source water is known for metals or staining, add a metal control product early. We commonly use Leisure Time Metal Gone after filling and after refills.

Phosphates (the hidden sanitizer-eater)

If sanitizer seems to disappear, water won’t stay clear, or you constantly chase cloudiness, test for phosphates . If levels are high, we use SeaKlear Free & Klear .

Don’t brute-force it: If water keeps fighting you, don’t just keep dumping in sanitizer. Check metals and phosphates and fix the root cause instead.

Step 4: Balance Your Water

Balance in this order: Total Alkalinity → pH → Calcium Hardness

Target ranges

Total Alkalinity: 80–120 ppm

pH: 7.2–7.6

Calcium Hardness: 150–250 ppm

Fix alkalinity first because it stabilizes pH. After each adjustment, circulate the water and retest later rather than stacking multiple chemical doses back-to-back.

If you need help choosing products: raise alkalinity (FROG Target), raise pH (FROG JumpH), lower pH/alkalinity (FROG DropH), or raise hardness (FROG SooTHe).

Balancing made simple: FROG Balancing Basics Kit

Step 5: Sanitize the Water (After Balance)

Your goal

Once the water is balanced, choose a sanitizer system and keep it consistent. Mixing systems or bouncing between methods is one of the fastest ways to create ongoing water problems.

Easy mode: FROG @ease

The FROG @ease startup kit is designed to reduce the “peaks and valleys” of traditional dosing by maintaining a steady sanitizer level with minimal day-to-day effort.

New owner tip: Use the correct test method. Standard test strips can misread reserve-based systems. FROG @ease test strips are included in the startup kit and provide the most accurate readings.

FROG @ease Floating Sanitizing System

@ease SmartChlor® Refill Kit

Quick Troubleshooting Jump List

If you’re short on time, jump directly to the section that matches what you’re seeing:

Foam in the spa
Green, yellow, or brown tinted water
Cloudy or dull water
Sanitizer level won’t hold
When it’s time to drain and refill

Step 6: Weekly Maintenance Routine

Weekly “5-minute” routine

Test water (alkalinity → pH → sanitizer reading).
Adjust only what’s needed (small steps).
Rinse filters weekly if water looks dull or flow is reduced.
Wipe the waterline if you see a ring forming.

Tip: Enter your test results into the FROG Water Care® App and it will tell you exactly what to add — no math, no guessing.

Filter care rule of thumb: Rinse filters weekly and perform a deep clean about once per month using a dedicated filter cleaner, such as Leisure Time Filter Clean .

Prevent scale & buildup

To help prevent scale and mineral buildup, add a weekly dose of a scale prevention product. Many spa owners use either Leisure Time Defender or Unique , depending on water conditions and personal preference.

Control phosphates (weekly)

Phosphates can quietly build up from detergents, lotions, and source water. Adding a small weekly maintenance dose of SeaKlear Free & Klear helps prevent sanitizer demand spikes and keeps water easier to manage long-term.

Sanitizer dropping too fast

If sanitizer levels won’t hold, phosphates, oils, or organic buildup may be consuming it faster than normal. Weekly maintenance doses of phosphate control can dramatically reduce sanitizer demand.

Oxidizing shock (as needed)

Even with easy systems, occasional oxidation helps break down oils, lotions, and other organic contaminants. If you prefer non-chlorine shock, here’s what we use: FROG StoMPS .

Step 7: Fix Common “As-Needed” Problems

Foam (when the water gets bubbly)

A little foam usually means there are extra oils, detergents, or residues in the water (not that your sanitizer “failed”). The best practice is prevention first:

Rinse swimwear thoroughly (no detergents or fabric softeners).
Avoid lotions/oils before soaking when possible.
Keep up with filter rinsing and occasional oxidizing shock.

If foam is already present and you need a fast fix, use an as-needed defoamer like Leisure Time Foam Down . (It treats the symptom — prevention keeps it from coming back.)

Cloudy or dull water

Cloudy or dull water is usually caused by a buildup of fine particles, oils, phosphates, or early-stage balance issues. This often shows up even when sanitizer levels look “okay.”

Start by checking balance and filter condition. If sanitizer seems to disappear quickly, phosphates or organics may be consuming it faster than normal. Weekly maintenance with phosphate control and occasional oxidizing shock usually clears this up.

Tinted / discolored water (green, yellow, brown)

When metals oxidize (iron/copper/manganese), water can take on a tint — green, yellow, or brown depending on the metal. This can happen after shocking, high sanitizer, or fresh fills.

Go-to helper: Leisure Time Bright & Clear is one of the most effective options for clearing up water that’s tinted from oxidized metals. If metals are a repeat issue in your area, keep using metal control after refills (Step 3) and fill through a pre-filter (Step 2).

Step 8: Drain, Clean, Refill (and Start Fresh)

Most spas benefit from periodic drain and refill. If water becomes hard to manage, foamy, or dull, don’t fight it forever — reset the water and start fresh. For larger spas, we recommend using a submersible utility pump to drain the spa quickly and efficiently.

FROG Pipe & Jet Cleaner

Before changing water, clean the plumbing from the inside out so your fresh fill starts truly clean.

FROG hot tub pipe and jet cleanser singular tube for deep plumbing cleaning

Pipe & Jet System Cleaner

Written by spa professionals at MinnSpas with decades of combined experience helping hot tub owners in real-world conditions.

Do I still need to shock my hot tub if I use FROG @ease?

Yes. FROG @ease handles day-to-day sanitizing, but periodic non-chlorine shock helps remove oils, lotions, and organic buildup that can affect water clarity.

Can I use FROG @ease in any hot tub?

FROG @ease is compatible with most residential hot tubs. Always follow FROG’s instructions and avoid combining it with other sanitizer systems unless specifically directed.

Why does water balance matter before installing FROG @ease?

Properly balanced alkalinity, pH, and calcium protect your spa equipment and allow the minerals and SmartChlor® to work correctly. Starting with unbalanced water can shorten cartridge life.

How often do I replace FROG @ease cartridges?

Mineral cartridges typically last about four months. SmartChlor® cartridges usually last three to four weeks, depending on spa size, temperature, and usage.

Is FROG @ease good for sensitive skin?

Many spa owners report softer-feeling water and less odor compared to traditional chlorine-only systems. Individual sensitivity varies, but FROG systems are designed to reduce harsh chemical exposure.

Need help? You’re never on your own.

One of the best parts of FROG @ease and the Balancing Basics system is the built-in support. Use the help line or the free app to test water, troubleshoot issues, and find your local dealer.

FROG Help Line

Have questions? Call or text FROG VIP at:
1-855-376-4847

FROG Water Care® App

Test your water, troubleshoot issues, and locate your dealer — all in one place.