A green swimming pool is a common problem, especially during the warmer months here on the Costa Blanca. Thankfully, with Construma there is always a solution – and with the right care, it can easily be prevented.
The green colour is normally caused by algae growing in the water or on the pool surfaces. The first thing to check is whether the pool has enough disinfectant, usually chlorine. However, low chlorine is not the only possible cause. An unbalanced pH, poor filtration, or excessive cyanuric acid can also stop the chlorine from working properly.
Many people think that simply adding more chlorine will solve the problem, but this is not always true. The effectiveness of chlorine depends strongly on the pH level of the water. If the pH is not correctly balanced, the chlorine may not disinfect the pool as it should.
In many cases, green water can be treated with a shock chlorination and by brushing the pool walls and floor. Sometimes, however, certain types of algae are resistant to standard treatment and a specific algaecide may be needed.
External factors can also play a part. Higher temperatures encourage algae to grow more quickly, whilst rain can alter the pH of the water and introduce dirt, organic matter, and other impurities into the pool. This is why regular pool care is especially important in Mediterranean climates.
To help prevent green water, do not reduce filtration hours, especially in summer. Chlorine and pH should be checked weekly, while cyanuric acid and alkalinity should ideally be tested every two weeks.
Construma offers a complete range of swimming pool services, from water treatments, chemicals and maintenance products to pumps, pool robots, filters, accessories and specialist equipment. Whether your pool needs a simple clean-up, a new pump, a more efficient cleaning system, a full refurbishment or even for the construction of a brand-new pool, the Construma team can help you find the right solution.
With regular care and professional advice, maintaining crystal-clear pool water is much easier than you might think – so you can simply relax and enjoy every swim. Visit www.construma.es to find out more.