How to solve green water?

During the winter, lack of maintenance, chemical imbalances and debris build-up can turn pool water into an ideal environment for algae, causing a cloudy and unpleasant appearance. 

This article addresses the most common causes of green water in winter, offers practical solutions to restore its crystal clear state and provides tips to prevent this problem in the future.

Why Does Your Pool Water Turn Green in Winter?

Stone Stairs covered with algae along a canal during low tide in Venice in Italy. Green Canal Water.

During the winter, it is common for pool water to turn green due to lack of regular maintenance. Without proper supervision, chlorine and pH levels become unbalanced, encouraging algae growth. Below we will look at the main causes of green water and the problems associated with it.

Main causes

  1. Lack of regular maintenance during the winter.
  2. Imbalance in chlorine and pH levels.
  3. Algae blooms due to sun exposure and lack of overwintering products.

Associated problems

  • Unpleasant cloudy appearance that affects the aesthetics of the pool.
  • Bad odours generated by stagnant water and the proliferation of micro-organisms.
  • Increased difficulty and costs to restore the chemical balance of the water if not treated in time.

Practical Solutions for Cleaning Green Water

PH and chlorine analysis kit for swimming pools. Liquid chlorine and PH meter for swimming pools.

Restoring green water to your pool may seem like a complicated task, but by following a few simple steps it is possible to restore your pool to its crystal clear state efficiently. 

In this section, we explain the steps for effective cleaning, adjusting chemical levels, applying specific treatments and maintaining correct filtration to eliminate algae and prevent their reappearance.

Steps for winter green water cleaning

1.Initial cleaning: Remove leaves and debris with a net and use a hoover for the bottom.

2.Adjust chlorine and pH levels: Measure and correct chlorine (1-3 ppm) and pH (7.2-7.6). Find specific products at JuJuJu.

3. Anti-algae treatment: Apply algaecides to eliminate algae and prevent their reappearance. JuJuJu offers effective options.

4.Filter and circulate the water: Filter the water several hours a day after treatment to remove any remaining algae.

How to Prevent Green Water in Winter?

Green water in dirty swimming pool. Dirty pool water surface with autumn leaves.

Preventing your pool water from turning green during the winter is easier than it sounds if the right measures are taken. From the use of quality covers to regular maintenance and the application of specific products, these practices not only prevent problems, but also make it easier to get your pool ready for the next season.

  • Use a quality cover: Protect the pool from dirt and sunlight with opaque or safety covers, available from JuJuJu.
  • Perform regular maintenance: Check chlorine and pH levels, and perform occasional filtering to prevent stagnation.
  • Apply overwintering products: Use algaecides and clarifiers to keep the water clean and balanced during the winter.

Solving and preventing green water in winter is essential to keep your pool in good condition and ready for use in spring. With proper maintenance, you can avoid costly problems and prolong the life of your pool.

Visit JuJuJu to find the best maintenance products and receive personalised advice on how to take care of your pool throughout the winter.

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