Cómo afecta rellenar piscinas con agua de mar

how can seawater affect my salt water chlorinator?

Conventional saline equipment (salinity 2-6 gr/l) are not prepared for the high percentage of salt in seawater (salinity of 36 gr/l).

The installation should be adapted with specific equipment. However, it should be taken into account that a whitish precipitate of magnesium hydroxide may form, which will go to the bottom of the pool tank giving a bad image.

It may even cause blockage of the cells (or electrodes) of the electrolysis equipment after several hours of operation.

how can seawater affect the pump?

Conventional filtration pumps are not prepared to work with seawater because its metallic material (AISI-316L) would be quickly affected and would cause the pump to malfunction. The installation should be adapted with specific equipment.

what is the best filter load for a pool with seawater?

The best, safest and most reliable filter media is flint. Glass is eroded by seawater and would lose its filtering quality over time.

what is the recommended chemical treatment for seawater in swimming pools?

The chemical treatment for seawater would be with a sodium hypochlorite (liquid chlorine) dosing pump, working with a pH of 7.6-7.8 and to eliminate chloramines, complement the installation with an ultraviolet light equipment suitable for seawater.

how should we treat stairs, water games,...?

The water games (cannons, curtains, ...), the stairs or any stainless element will have to be cleaned very often with specific products to avoid rapid oxidation or replace them with others with a more resistant stainless steel (AISI-904).

what pre-treatment should the sea water have when filling the pool?

The supplier must be required to deliver the Technical Data Sheet of the water and the physical-chemical analysis of the batch used for filling, ensuring that it has been filtered and disinfected and in conditions for bathing use (microbiological analysis).

what is the cost of sea water?

It should be kept in mind that the cost of seawater is high. Although the price per liter will vary depending on the size of the pool, the approximate cost for a pool of 6 x 3 m (25 m3) could be about 1,100 to 1,350 ¤ + VAT.

To this price we would have to add the transport and handling costs.

Other aspects and considerations you should take into account:

• When filling the pool with seawater, there are a number of aspects to pay attention to.
• By regulation the pool cannot be connected to the sewage system as it is a polluting water due to its high salt content.
• It cannot be used for irrigation or as grey water.
• Everything that is in contact with seawater and is metallic will rust immediately.
• The grout should be special epoxy grout.
• The bather will notice itchy wounds and open eyes in the water.

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