Why Your Pool Will Not Hold Chlorine: Causes & Fixes
Six causes, one diagnostic order. How to tell sunlight loss from algae in a single overnight test, and why the most common…
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Guides, tips and practical answers on pool care, water chemistry and equipment — written to go alongside the calculators.
- 32 articles
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Latest articles
Calcium Hardness: The Reading That Protects Your Pool
Too little calcium and the water dissolves your plaster; too much and it scales your heater. Why it is easy to raise…
Total Alkalinity and pH: Which Should You Fix First?
pH is the reading people chase; alkalinity decides whether they will ever catch it. How the two interact, why pH controls chlorine…
Pool Shock: What It Does, When You Need It & How Much to Use
Shocking is not a product or a schedule — it is a chlorine target set by your stabiliser reading. How to work…
What It Really Costs to Run a Pool: Full Breakdown
Where the money actually goes, why pump speed matters more than pump size, and the five changes worth making first.
Saltwater vs Chlorine Pools: Key Differences Explained
A salt pool is a chlorine pool that makes its own chlorine. What that changes, what it does not, and what it…
Sand, Cartridge or DE Pool Filters: Which Is Right?
How the three filter types differ in fineness, cleaning and water use, and why the pressure gauge should decide when you clean.
Cyanuric Acid: The Reading That Decides Your Chlorine
Why free chlorine cannot be judged on its own, how stabiliser creeps up without you adding any, and the levels worth holding.
How to Handle Pool Chemicals Safely: Essential Tips
The mixing mistakes that cause almost every serious pool chemical incident, and how to store and add chemicals so none of them…
How to Choose the Right Pool Pump
Why flow rate matters more than horsepower, what your plumbing can actually carry, and whether variable speed is worth it.