🇬🇧 The UK's complete pool care system

Crystal clear water.
All swim season.

Premium pool chemicals delivered from our UK warehouse. A free water-testing app that tells you exactly what to add. Thermotec™ heat pumps to keep your pool warm for months longer.

Everything you need. One place.

5-star rated chemicals🇬🇧UK warehouse stockFast dispatch🔬App-guided dosing🤝UK customer support

One brand, three ways we help

Everything your pool needs, covered

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Pool Chemicals

Professional-grade chlorine, pH balancers, shock treatments, algaecides and more — all formulated for UK pools and dispatched fast from our UK warehouse.

📱
Free

SafeSplash App

Enter your pool readings and get instant, personalised treatment advice. Know exactly which products to add, in what quantity — no guesswork.

Get started free →
🌡️

Thermotec™ Heat Pumps

Extend your swim season by months with a Thermotec™ pool heat pump. The UK's most energy-efficient pool heating — by our sister brand HeatPumps4Pools.

Explore heat pumps →

Free tool

Pool volume calculator

Enter your pool dimensions and instantly get the volume plus a starter guide on what chemicals you'll need.

Enter your pool dimensions above to instantly see your volume and starter dosing guide

Already have the app? Sign in for your personalised guide →

UK stock, fast dispatch

Pool chemicals & testing

Shop in the app →Also on Amazon ↗
Best Seller
Multi Chlorine Tablets 5 kg

Multi Chlorine Tablets 5 kg

Slow-dissolving 200g multi-action tablets with built-in algaecide and clarifier. The all-in-one solution for busy pool owners.

£44.99inc. VAT
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Stabilised Chlorine Granules 5 kg

Stabilised Chlorine Granules 5 kg

Fast-dissolving stabilised granules for consistent free chlorine levels. Ideal for top-up dosing between tablet changes.

£34.99inc. VAT
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Popular
Granular Shock Treatment 5 kg

Granular Shock Treatment 5 kg

High-strength chlorine shock to destroy organic matter and restore water clarity quickly after heavy use or algae outbreaks.

£49.99inc. VAT
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pH Minus Granules 7 kg

pH Minus Granules 7 kg

Fast-dissolving granules to bring pH back into the ideal 7.2–7.6 range quickly and safely.

£25.00inc. VAT
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Algae Eliminator 2 L

Algae Eliminator 2 L

Powerful algaecide for rapid treatment of green, black and mustard algae. Restores clarity within 24 hours.

£40.00inc. VAT
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Pool Water Clarifier 1 L

Pool Water Clarifier 1 L

Concentrated clarifier that clumps fine particles so your filter can remove them — leaving water sparkling clear.

£17.99inc. VAT
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Liquid Chlorine (Sodium Hypochlorite) 14/15%

High-strength liquid chlorine for rapid dosing. Easy to use — no dissolving required. Ideal for pools with dosing pumps.

£41.50inc. VAT
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New
SafeSwim Pool Water Tester

SafeSwim Pool Water Tester

Professional photometer that tests chlorine, pH, alkalinity, bromine and more — accurate results in seconds.

£149.99inc. VAT
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SafeSwim Phosphate Reagent

SafeSwim Phosphate Reagent

Liquid reagent for 50 photometer phosphate tests. High phosphate feeds algae — keep it in check.

£21.50inc. VAT
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SafeSwim Calcium Reagent

SafeSwim Calcium Reagent

Liquid reagent for 50 photometer calcium hardness tests. Ideal range 200–400 ppm for plaster and equipment life.

£18.00inc. VAT
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Cyanuric Acid Reagent (60 Tests)

Cyanuric Acid Reagent (60 Tests)

Photometer reagent for 60 cyanuric acid (stabiliser) tests. Keep CYA at 30–50 ppm for outdoor pools.

£12.50inc. VAT
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Alkalinity Test Strips (100)

Alkalinity Test Strips (100)

Quick-read strips for total alkalinity. 100 tests — aim for 80–120 ppm to prevent pH bounce.

£16.00inc. VAT
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pH Test Strips (100)

pH Test Strips (100)

Simple dip-and-read pH strips. 100 tests — ideal pH is 7.2–7.6 for comfort and chemical efficiency.

£12.50inc. VAT
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Free Chlorine DPD-1 Strips (100)

Free Chlorine DPD-1 Strips (100)

DPD-1 test strips for fast free chlorine readings. 100 tests — target 1–3 ppm for safe bathing.

£16.00inc. VAT
Buy →

Sign up free to shop directly in the app — or browse on Amazon ↗

Free for all pool owners

Know exactly what your pool needs

Stop guessing. The SafeSplash app analyses your test readings against UK pool standards and gives you a precise treatment plan — then links you straight to the right products.

01

Test your water

Use any standard test kit or strips. Takes 30 seconds.

02

Enter your readings

pH, chlorine, alkalinity, hardness, CYA and more.

03

Get your analysis

Instant results checked against UK pool standards.

04

Order what you need

Tap to buy the exact products — delivered from our UK warehouse.

SafeSplash
Your pool analysis
pH Level
7.4Good
Free Chlorine
0.4ppm⚠ Low
Total Alkalinity
110ppmGood
Calcium Hardness
220ppmGood
✨ Recommended treatment
Shock Treatment 5 kg
Add 200g per 10,000L tonight
Order on Amazon →
🏊
Safe to swim: Not yet
Check again after treatment
🇬🇧

UK Warehouse

All stock held in the UK

Fast dispatch

Same-day on orders before 2pm

🔬

App-guided dosing

Precise, personalised advice

Top rated

5-star customer reviews

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Free delivery

On Amazon orders over £35

💬

UK support

hello@safesplash.co.uk

By HeatPumps4Pools

Swim more months
of the year

A Thermotec™ pool heat pump can extend your swimming season by 3–4 months — and with COP ratings up to 16, it costs a fraction of a gas heater to run. Installed by our UK engineers.

+3–4months

More swimming per year

COP 16

Ultra-efficient heating

100%

UK installation team

5★

Customer rated

Start today

Your pool, perfectly balanced

📱

Free water testing app

Test your pool water, get instant expert analysis, and order exactly what you need — free, forever.

Create free account →

No card required · Works on any device

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Shop pool chemicals

Browse our full range in the app — get personalised recommendations based on your test results. UK stock, fast dispatch, free delivery over £35.

Shop in the app →

Or shop on Amazon ↗ · UK dispatch