Keeping Chlorine Alive in a Namibian Pool: A UV Survival Guide

Namibia has some of the highest UV indices on earth, and ultraviolet light destroys free chlorine — fast. A pool dosed at eight in the morning in January can lose half its sanitiser by mid-afternoon. The dosing schedule on the imported tub was written for a gentler sky.

Dose in the evening

Chlorine added at 18:00 works through the night — killing, oxidising, doing its job — instead of duelling the midday sun. This one change costs nothing and is the single biggest improvement most pool owners can make.

Use stabilised, slow-release formats

Slow-dissolving HTH pills in a feeder keep a protected baseline of chlorine between doses. Granular chlorine (HTH dry, or our own Pure Pools 10 kg pack) handles the evening top-up and shock work.

Hold the pH line

Above pH 7.8 — where hard Namibian fill water constantly pushes — most of your chlorine sits in its inactive form. Regular small corrections with swimming pool acid keep pH at 7.2–7.6, where chlorine actually works. Drift is the silent chlorine tax.

Watch the stabiliser ceiling

Years of stabilised product raise cyanuric acid until chlorine locks up. If your pool tests fine but behaves badly, test CYA — a partial drain and refill resets it.

Both branches stock the full pool range in trade sizes, with seasonal pricing for lodges and service companies. Ask for the pool trade quote before the season peaks.