AquaSpa Maintenance & Troubleshooting Guide
Keep your chlorine-free and bromine-free spa water balanced, clear, fresh, and enjoyable week after week.
This guide explains how to continue maintaining your spa or hot tub with AquaSpa after set-up or conversion. It covers the weekly dosing routine, water balance targets, filter cleaning, drain and refill timing, helpful care notes, and common troubleshooting steps for cloudy water, foaming, odour, and brown scum.
Weekly AquaSpa Maintenance Routine
Maintaining your AquaSpa spa is a simple weekly process. The core routine uses AquaSpa Spa Sanitiser, AquaSpa Spa Shock, and AquaSpa Spa Kleer together, with accurate dosing and clean filtration.
Step 1: Sanitise
Add AquaSpa Spa Sanitiser once per week at 60ml per 1000 litres. The ideal sanitiser level is 15–20ppm.
Step 2: Oxidise
Add AquaSpa Spa Shock once per week at 20g per 1000 litres. An extra dose may be used after heavier than normal spa use.
Step 3: Clarify
Add AquaSpa Spa Kleer once per week at 60ml per 1000 litres to help maintain a clearer, cleaner-looking spa finish.
Optional weekly comfort step: AquaSpa Invigorate can be added at 50ml per 1000 litres to enhance the spa experience with sea minerals including magnesium, potassium, and ocean trace elements.
Water Balance Targets
Test your spa water weekly with Insta-TEST Spa Test Strips. Balanced water helps AquaSpa perform correctly, keeps the water more comfortable, and helps protect spa equipment.
Sanitiser
15–20ppm
Use AquaSpa Spa Sanitiser.
pH
7.4–7.6
Use AquaSpa pH Reducer if pH is high.
Total Alkalinity
125–150ppm
Use AquaSpa Alkalinity Enhancer if low.
Calcium Hardness
200–275ppm for concrete and tiled spas
175–225ppm for other surfaces.
AquaSpa Dosage Chart
Use this chart as a quick reference for common spa volumes. Dosages are a guide only. Always follow the directions on the product label and calculate your spa volume accurately before dosing.
| AquaSpa Product | 100L | 500L | 1000L | 1200L | 1400L | 1600L |
|---|---|---|---|---|---|---|
| On Start Up | ||||||
| AquaSpa Chlorine Remover | 1.25ml | 6.25ml | 12.5ml | 15ml | 17.5ml | 20ml |
| AquaSpa Spa Sanitiser | 6ml | 30ml | 60ml | 72ml | 84ml | 96ml |
| AquaSpa Spa Kleer | 6ml | 30ml | 60ml | 72ml | 84ml | 96ml |
| AquaSpa Spa Shock | 2g | 10g | 20g | 24g | 28g | 32g |
| AquaSpa Invigorate | 5ml | 25ml | 50ml | 60ml | 70ml | 80ml |
| Add When Needed - Water Balance | ||||||
| AquaSpa Alkalinity Enhancer | As required | As required | As required | As required | As required | As required |
| AquaSpa pH Reducer | As required | As required | As required | As required | As required | As required |
| AquaSpa Calcium Enhancer | As required | As required | As required | As required | As required | As required |
| Add Weekly | ||||||
| AquaSpa Spa Sanitiser | 6ml | 30ml | 60ml | 72ml | 84ml | 96ml |
| AquaSpa Spa Kleer | 6ml | 30ml | 60ml | 72ml | 84ml | 96ml |
| AquaSpa Spa Shock | 2g | 10g | 20g | 24g | 28g | 32g |
| AquaSpa Invigorate | 5ml | 25ml | 50ml | 60ml | 70ml | 80ml |
| Use Weekly or After Heavy Use | ||||||
| AquaSpa Instant Filter Klenz | Spray on / hose off | Spray on / hose off | Spray on / hose off | Spray on / hose off | Spray on / hose off | Spray on / hose off |
| Add Every 3 Months | ||||||
| AquaSpa Pipe Klenz | 25ml | 125ml | 250ml | 300ml | 350ml | 400ml |
| Add When Required | ||||||
| AquaSpa Anti-Foam | As required | As required | As required | As required | As required | As required |
| AquaSpa Chlorine Remover | 1.25ml | 6.25ml | 12.5ml | 15ml | 17.5ml | 20ml |
We recommend using AquaSpa Pipe Klenz on start-up when draining a spa before converting to AquaSpa. AquaSpa Spa Shock may also be used after each spa use when extra clarity and freshness support is required.
Filter Cleaning & Pipe Care
Clear AquaSpa water depends heavily on clean filtration. Filters collect body fats, oils, lotions, cosmetics, fine debris, and oxidised waste. If the cartridge becomes blocked, the water can become cloudy and harder to manage.
Clean Filter Cartridges Regularly
Use AquaSpa Instant Filter Klenz weekly, or more often after high usage. Spray on, then hose off according to label directions. Replace filter cartridges annually, or as recommended by your spa or cartridge manufacturer.
Clean Pipework Before Draining
Use AquaSpa Pipe Klenz every 3 months and before draining. This helps remove body fats, grime, organic build-up, and biofilm from internal pipework.
After Heavy Spa Use
Extra bather load can add more body oils, lotions, cosmetics, sweat, and organic waste to the water. Alcohol consumption can also increase the amount of bodily fluids and fats released into the spa.
Troubleshooting Common AquaSpa Issues
Most spa water issues are linked to one of four areas: water balance, sanitiser level, filtration, or build-up in the pipework. Work through the relevant checks below before assuming a larger problem.
Cloudy Water
Cloudy water can be caused by incorrect water balance, incorrect dosing, blocked filter cartridges, or body fats in the pipework.
1. Check water balance
- Check and adjust pH to 7.4–7.6.
- Check and adjust alkalinity to 125–150ppm.
- Use AquaSpa Alkalinity Enhancer or AquaSpa pH Reducer as required.
2. Check sanitiser and Spa Kleer dosing
- Test the sanitiser level. It should be 15–20ppm.
- Too much or too little AquaSpa Spa Sanitiser can cause cloudy water.
- Incorrect dosing of AquaSpa Spa Kleer can also affect clarity.
- If overdosed, remove one third of the water, dilute with fresh water, then retest.
3. Clean blocked filter cartridges
- Remove the filter cartridges and clean with AquaSpa Instant Filter Klenz.
- Shock dose the spa with a double dose of AquaSpa Spa Shock and run the filter for 2 hours.
4. Treat body fats in pipework
- Use AquaSpa Pipe Klenz.
- Drain and refill the spa after pipework cleaning.
Foaming
Foaming is usually caused by high sanitiser levels, incorrect water balance, or a build-up of body fats in the filter or pipework.
Quick correction
- Add AquaSpa Anti-Foam according to label directions.
- Anti-Foam reduces visible foam, but it does not remove the cause of the problem.
Correct the cause
- Test the sanitiser level and correct the dose if required.
- Test pH, alkalinity, and calcium hardness.
- Clean the filter cartridge with AquaSpa Instant Filter Klenz.
- If foaming returns quickly, use AquaSpa Pipe Klenz, then drain and refill.
Strong or Offensive Odour
A strong chemical or unpleasant odour is often caused by low pH, overdosing AquaSpa Spa Sanitiser, or the presence of body fats.
What to do
- Test and adjust pH.
- Check the AquaSpa sanitiser level.
- Dilute the spa with fresh water if the sanitiser level is too high.
- Use AquaSpa Spa Shock to help oxidise body fats and organic waste.
- Clean the filter cartridge if odour appears after heavy spa use.
Brown Scum Around the Waterline
A light brown scum around the waterline can occur due to source water impurities or when jets and bubbles are running while AquaSpa Spa Sanitiser is being added.
What to do
- Apply a small amount of AquaSpa pH Reducer to a soft cloth or AquaSpa Spa Pad, then gently wipe the affected waterline area.
- When adding Spa Sanitiser, run the filtration pump only and avoid jets or bubbles.
Helpful AquaSpa Products for Ongoing Care
These products support weekly care, water balance, filter cleaning, pipework maintenance, and common troubleshooting steps.
Spa Sanitiser
Core weekly sanitising step.
Spa Shock
Freshness and oxidation support.
Spa Kleer
Water clarity and finish.
Invigorate
Sea mineral comfort support.
Instant Filter Klenz
Fast cartridge cleaning.
Pipe Klenz
Internal pipework cleaning.
Anti-Foam
Quick visible foam control.
Spa Pad
Waterline and spa surface cleaning support.
Insta-TEST Strips
Test PHMB, pH, alkalinity, and hardness.
Frequently Asked Questions
How often should I dose AquaSpa products?
Do I need to test the water every week?
What is the ideal AquaSpa sanitiser level?
Can I add all AquaSpa products at the same time?
Why should I leave the spa cover off after dosing?
How often should I clean the filter cartridge?
When should I use AquaSpa Pipe Klenz?
Is AquaSpa Anti-Foam a permanent fix?
Can I use chlorine products with AquaSpa?
Why is my spa not perfect straight after converting to AquaSpa?
Starting Fresh or Converting to AquaSpa?
If you are setting up a new spa, converting from chlorine or bromine, or restarting after a drain and refill, the AquaSpa Start-Up Kit brings the key products together in one box.
For the full start-up and conversion process, visit the AquaSpa System Guide.
