Swimming Pools

Adding baking soda to a swimming pool to raise total alkalinity levels

Swimming Pools

By Pools Reno Team
April 20, 2025

Pool Alkalinity Calculator: What to Add & How Much

Total alkalinity is the setting that keeps pH stable. Get it right and pH stops bouncing. Get it wrong and you will be adding acid every few days. This guide shows the target range,...

By Pools Reno Team
April 20, 2025
Swimming Pools

How Much Sand for a Pool Filter in South Africa

If your pool water has gone cloudy or the filter pressure keeps climbing, the sand inside is usually the problem. Getting the amount right matters. Too little and the water channels straight past the...

Pouring pool shock into a backyard swimming pool for water sanitisation

Swimming Pools

By Pools Reno Team
April 20, 2025

Pool Shock Calculator: How Much Shock Do You Need?

Shocking a pool means driving free chlorine high enough to burn off the contaminants normal chlorine cannot handle. Most shock dosing charts online are written for US gallons, so the numbers do not match...

Adding calcium chloride to adjust swimming pool calcium hardness levels

Swimming Pools

By Pools Reno Team
April 20, 2025

Calcium Hardness Calculator: How Much Calcium Chloride to Add (or Water to Replace)?

Calcium hardness is the level most pool owners ignore until the surface starts to suffer. Too low and the water pulls calcium out of your marbelite. Too high and you get scale. Here is...

Pool cleaning and testing kit with test strips and solutions used to check pH, chlorine, and stabiliser levels in swimming pool water

Swimming Pools

By Pools Reno Team
April 20, 2025

Pool Borate Calculator: How Much Borax Do You Need?

Borax is one of the cheapest ways to make pool water feel softer and hold its pH steady. It is also one of the easiest to get wrong, because most dosing advice online is...

Side-by-side comparison chart showing the differences between pool chlorine and household bleach, including concentration, cost, safety, and environmental impact for South African swimming pools

Swimming Pools

By Pools Reno Team
April 20, 2025

Pool Chlorine Calculator: How Much Chlorine Do You Need to Add?

Most chlorine dosing advice online is written for US pools in gallons, using products sold in America. South African pools are measured in litres and dosed with HTH, granular cal hypo or liquid chlorine...

Chemical testing for swimming pool water clarity

Swimming Pools

By Pools Reno Team
April 20, 2025

Pool pH Calculator: How To Get Your pH Level In

pH is the reading that decides whether everything else in the pool works. Chlorine at the right level does almost nothing if pH has drifted high. Here is the target, and how to adjust...

Swimming Pools

By Pools Reno Team
April 20, 2025

Pool Stabiliser Calculator: How Much to Add for Your Swimming Pool in Cape Town?

When maintaining a swimming pool in Cape Town or the Western Cape, one of the most overlooked but essential chemicals is pool stabiliser, also known as cyanuric acid (CYA). If your chlorine disappears too...

Cape Town pool expert checking water chemistry

Swimming Pools

By Pools Reno Team
April 20, 2025

Pool Saturation Index Calculator: Balance Your Water the Right Way

The saturation index is the single number that tells you whether your pool water is going to damage the surface. It pulls pH, temperature, calcium hardness and alkalinity into one figure. For a marbelite...