Wide range of Silex sands available for water filter. The standard particle size, the most used for pool filters, is 0.4-0.8 mm. For large capacity pools, the type of water, the polluting loads and the combination of appropriate particle sizes are very important.
But without specific study of your swimming pool water, the granulometry 0.4-0.8 mm. will fit perfectly.
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Silica sand, how can you calculate the amount you need?
If you do not know how many kilos of silica sand you need for your filter, you can calculate them if you know the m3 you need. For example, for a filter of 1 meter x 50 cm x 75 cm calculate: 1x0,5x0,75 = 0,375 m3
1 m3 corresponds to 1400 kilos, 0.375 times 1400 = 525 kilos. So that's the amount of sand you'll need.
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