Why is it easy to make mistakes in pool care?
The false sense of simplicity
At first glance, pool care seems simple: add a bit of chlorine, run the leaf skimmer now and then… done. But behind that apparent simplicity lie small actions that make the difference between a gleaming pool and water that turns cloudy without warning.
Lack of information or an established routine
Many mistakes happen due to lack of knowledge or a missing routine. You don’t need to be an expert, but you do need to grasp a few basics. A well-kept pool is the result of consistency, observation, and informed decisions.
10 common mistakes that harm your pool (and how to fix them)
1. Not testing pH and chlorine levels regularly
Relying on how the water looks isn’t enough. If pH is off, chlorine becomes less effective and invisible issues can arise. Ideally, test at least twice a week and always after rain or heavy use.
2. Adding products without knowing your water values
Adding chlorine, algaecide, or flocculant without knowing what the pool actually needs can backfire. Measure first, act second. It’s the only way to avoid overdosing, incompatibilities, or unnecessary treatments.
3. Always using the same dose without adapting to use or temperature
Water doesn’t behave the same in July as in September, nor with two bathers versus ten. Adjusting product amounts to real conditions prevents over-treating or shortfalls.
4. Neglecting the filter or doing a poor backwash
A dirty filter loses efficiency and can recirculate impurities. Clean the pre-filter weekly and backwash when the pressure gauge rises or, at minimum, once a week in peak season.
5. Not cleaning the waterline properly
Sunscreens, pollen, insects… build up there. Without regular cleaning, grime embeds and spoils the pool’s look. A specific cleaner and a sponge are enough to keep it spotless.
6. Leaving the pool uncovered for long periods
No cover means more evaporation, more debris, and faster chlorine degradation. Use a tarp or solar cover whenever the pool isn’t in use—especially at night or on windy days.
7. Skipping preventive treatments during critical weeks
Waiting for algae to appear is like watering a plant after it’s already dried out. During heat waves or heavy use, apply algaecide and give chlorine a light boost even if the water looks fine.
8. Mixing incompatible chemicals
Adding chlorine and flocculant at the same time, or combining brands without reading the instructions, can trigger harmful or ineffective reactions. Respect timing and application order.
9. Using algaecide only when algae appear
Algaecide is more effective as prevention than cure. A weekly dose in summer prevents blooms and keeps the water clear with less effort.
10. Not checking the water after rain, parties, or strong winds
These events disrupt water balance. After a crowded swim or a storm, test and adjust as needed. Quick prevention after anomalies saves bigger headaches later.
How to build an error-proof routine
Weekly checklist and parameter log
Spending 10 minutes twice a week to review water status, equipment, and chemistry is plenty. Logging results in a notebook or app helps you spot patterns and act in time.
Basic training and professional guidance
Investing a little time to learn maintenance fundamentals pays off more than improvising. And if you’re unsure, consult a professional or specialized companies like Piscines Dream, which offer tailored support for every pool type.
A well-kept pool is a pool without surprises
Avoiding these mistakes doesn’t require deep expertise—just attention, consistency, and common sense. With a simple routine and proper product use, your pool can stay that fabulous corner where summer shines without setbacks.
