£26.49

Blue Horizons 5L WINTER TIME LONG LIFE ALGAECIDE WINTERISER (Treats 15,000 gallons) UK

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About as cheap as it gets. The only time it was cheaper was 9 months ago.

£26 today · all-time low £26 (Sep 2025) · usually the usual

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Price History & Forecast

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Last 599 days • 599 data points (No recent data available)

Historical
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£32.99 £25.80 £27.37 £28.94 £30.50 £32.07 £33.64 06 June 2024 02 November 2024 01 April 2025 28 August 2025 25 January 2026

Price Distribution

Price distribution over 599 days • 6 price levels

Days at Price
Current Price
311 days · current 20 days 10 days 235 days 12 days 11 days 0 78 156 233 311 £26 £27 £28 £29 £30 £33 Days at Price

Price Analysis

Most common price: £26 (311 days, 51.9%)

Price range: £26 - £33

Price levels: 6 different prices over 599 days

Description

Blue Horizons Ultimate Winter Time is a longlife copper-free algaecide formulated to prevent algae growth during the late autumn, winter and early spring in outdoor swimming pools. One dose will help prevent algae growth for up to six months. Ultimate Winter Time also helps to minimise the likelihood of stains and scale deposits during the closed season. Algae are microscopic plant life that can multiply rapidly in your swimming pool water in the right conditions. Recovering an algae infested pool can be time consuming and expensive which is why prevention is always preferable to cure. Our range of algaecides have been specially formulated to help you achieve sparkling clear and algae free water. We offer you a choice of weekly dosed and long life algaecides depending on your particular needs. The longlife algaecide is an effective copper free winter algaecide which helps prevent the multiplication of most types of algae. It helps to prevent staining and scale formation and is compatible with Chlorine, Bromine and Biguanide treated pools. Part of the Blue Horizons BOAST system Ensure pool water is clear and free from algae and debris before applying Blue Horizons Ultimate Winter Time. Shock dose the pool water using Blue Horizons Granular or Rapid Shock (both available from our online shop) to achieve a free chlorine level of 10ppm. Gradually pour the required amount of Blue Horizons Winter Time Algaecide into the pool whilst the pump(s) are turned 'on', preferably near the water inlets to aid distribution. Check the pH level and if necessary adjust to achieve the recommended winter pH range of 7.6 - 7.8 Keep the circulation system running until the algaecide is thoroughly distributed throughout the pool. If the winter and spring are mild it may be necessary to periodically shock dose the pool water with chlorine. This will help keep the pool clear as the air temperature starts to rise. A FREE pool winterisation guide will be sent with your order. Directions To prepare the pool water, shock dose it with Blue Horizons Granular or Rapid Shock to achieve a free chlorine level of 10ppm. Gradually pour the required amount of Blue Horizons Winter Time Algaecide into the pool whilst the pump(s) are turned 'on', preferably near the water inlets to aid distribution. Check the pH level and adjust to achieve the recommended winter pH range of 7.6 - 7.8. Keep the circulation system running until the algaecide is thoroughly distributed throughout the pool. If necessary, periodically shock dose the pool water with chlorine during mild winters and springs.

Key Features

Blue Horizons WINTER OR SUMMER Long Life Algaecide

5 litres treats up to 15,000 gallons

Copper free winter algaecide. Prevents staining & scale build-up

Compatible with Chlorine & Bromine treated pools

DONT FORGET, this can also be used in Summer too as a long life algaecide! DELIVERY TO UK MAINLAND ONLY

Product Specifications

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