The Copper Sulphate for swimming pools, CuSO4, is used as a algaecide in the preparation of swimming pools during the summer season. An algaecide is a chemical used to destroy algae (single or multicellular chlorophyllous microscopic plants). They reproduce by division or sporulation and encourage the growth of micro-organisms such as bacteria and fungi.
Virtually all swimming pools require the use of an algaecide. The copper sulphate is one of the most widely used.
WHEN TO USE COPPER SULPHATE IN SWIMMING POOLS
In these 2 images you can see different pools. In the first image we show you 2 pools with greenish water due to algae and organic matter. The lower image shows you a pool that we are used to swimming in. The colour is often the best indicator of the state of the pool.
The green colour is due to algae, which are unicellular micro-organisms of plant origin, with a great capacity to reproduce under certain conditions.
To repair the pool when this happens, it is recommended to use a biocide such as Copper Sulphate which will act as an algaecide. Copper sulphate for swimming pools is the common copper sulphate (pentahydrate), which you will usually find commercially.
COPPER SULPHATE DOSAGE FOR SWIMMING POOLS
The dose to be used will depend on the amount of organic matter in the water. It also depends on whether it is a shock treatment or if it is applied as a preventive treatment for the winter.
For a summer preparation cleaning of the water, a reference dose would be 5-10 grams per m3 of water. 1 m3 equals 1000 litres, so for a swimming pool of 100 m3 would need 0.5-1Kg of copper sulphate approximately. We can take these quantities as a reference.
1m3 of Water - (1.000L Water) - 5-10 grams of Copper Sulphate
10m3 of Water - (10.000L Water) - 50-100 grams of Copper Sulphate
50m3 of Water - (50.000L Water)- 250-500 grams of Copper Sulphate
100m3 Water - (100.000L Water) - 500-1000 grams (1Kg) Copper Sulphate
2500m3 of Water - 12-25 Kg of Copper Sulphate
Dissolve the product beforehand in a small amount of water and spread over the entire surface of the pool.
STEP BY STEP CLEANING OF ALGAE IN THE SWIMMING POOL
- Make a calculation of the volume of water in your pool (if you don't have it in the manufacturing plan). With this volume, estimate the quantity of copper sulphate.
- Dissolve the copper sulphate in a small amount of water first. Once dissolved in the small amount of water, pour the solution into the pool.
- Circulate the water for 1-2 hours. By circulating the water you will be dissolving all the copper sulphate in the pool. Leave overnight (8-10h) for the copper sulphate to act on the micro-organisms. Copper sulphate is a biocide that will act on the suspended micro-organisms. Subsequently, we will need a product that will precipitate them.
- Once it has settled overnight, or at least 8-10 hours, a flocculant is needed to precipitate the suspended particles. One of the most commonly used flocculants is Aluminium sulphate. Aluminium sulphate acts as a flocculant, binding the particles and precipitating them to the bottom of the pool.
- Leave the aluminium sulphate to stand and act for at least 1-2 hours.
- Clean the impurities left on the bottom and walls with a hoover.
- Recirculate the pool water.
- Measure the pH of the water and its residual chlorine, check that all values are within the established parameters.
- To prevent the formation of micro-organisms, the use of a pool protector is recommended.
In case the use of copper sulphate is preventive (the pool is not green, but copper sulphate is poured in when filling the pool as a preventive measure), use only as a preventive measure. 2 to 4 grams per m3 . If it is for winter maintenance (ALL YEAR ROUND), then use 50 grams per m3 of water.
OBSERVATIONS After applying the algaecide or copper sulphate, bluish-grey stains may appear, covering an appreciable surface of the walls and bottoms. They are due to the dead protein residues of the invading micro-organisms, and disappear on their own within 1 to 4 days.
Another use of copper sulphate is in agriculture, here you can see more: copper sulphate fungicideand is also an important component in the animal feed.
ASSOCIATED DOCUMENTATION
- Guide to good practice in the handling of chemical products in swimming pools.
- Royal Decree 742/2013, of 27 September, establishing the technical-sanitary criteria for swimming pools.
- Swimming Pool Maintenance Guide - Health Community of Madrid.
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Copper Sulphate
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Can I take a bath after using copper sulphate?
Hello Rosina,
It is very important to follow the steps for the application of copper sulphate in order to be able to bathe safely afterwards.
Greetings
Begoña
Cada que tiempo consideran suministrarle sulfato de cobre y cloro a la piscina?
Teniendo en cuenta que el agua está cristalina o limpia mejor dicho.
Gracias por su ayuda..
Hola a donde se compra
No
How many times do I have to put in to keep the water all summer long?
How long after using copper sulphate and cleaning the bottom can you bathe again?
Buenos días saludos cuánto sulfato de cobre le coloco a una piscina de 24 mil litros saludos
Good morning.
How often do you put copper sulphate in a swimming pool?
Thank you and best regards
Good afternoon my friend my pool has approximately 37 thousand litres of water how much copper sulphate can I put in it?
veo las preguntas y ninguna respuesta en cuanto tiempo de spueds de aplicado el producto se puede utilizar gracias
80gr
Pusimos sulfato de cobre en la piscina de fibra, la cantidad indicada por litro de agua, se manchó con un color marrón todos los escalones y parte de la línea de flotación. Cómo se quita?
El sulfato de cobre se hecha sobre las algas? O se deven de sacar primero?
Gracias.
I have black stains in the grooves of the mosaic tiles of the swimming pool, can they be removed with copper sulphate?
Hola buenos días! Cuanto sulfato de cobre nesecito para una pileta de 130ml y que más se le agrega para aclararla
Cada que tiempo consideran suministrarle sulfato de cobre y cloro a la piscina?
Teniendo en cuenta que el agua está cristalina o limpia mejor dicho.
Gracias por su ayuda..
Boa tarde! Ao comprar um algocida, o teor de sulfato de cobre é de 18,85%. Preciso fazer o cálculo para ter 100% de sulfato de cobre, certo? A piscina é de 18.000 litros.
Hola.tengo y a piscina de 30000 l de agua y le eché como 200g de sulfato de cobre .Veo q me pasé. Q hago? Cuando puedo vol er a usarla?
Good morning. If I use copper sulphate to prevent algae, should it be vacuumed or is it no longer necessary?
Hello, I applied 500 gr of copper sulphate, it is transparent but very green, now it is blue but cloudy, what should I do? THANK YOU
How many cubic metres of water
Buen día!.. a ver si logro entender lo que dices acá… era que su piscina estaba verde y con aplicar solo medio kilo de sulfato de cobre cambió de aspecto dando tonalidad azul pero con turbiades!.. y que volumen contiene su piscina?
Good afternoon, how often copper sulphate is used in swimming pools.
Hello, good afternoon. My pool measures 3×5. How much sulphate do I have to put in it?
I look forward to your reply, thank you very much.
Se puede poner sulfato d cobre en piletas plásticas?
hello, do you have a technical data sheet for copper sulphate?