The silica sand for Swimpool filters is specially graded to obtain a controlled granulometry to allow the optimal operation of the pool filtration system. Controlled granulometry between 0.6 and 1.2 mm in the case of sand and 2 to 4 mm in the case of the gravel.
Always follow the filter manufacturer's recommendations regarding the sand-to-sand ratio.
Recommendation for sand filters*:
Filter diameter (mm) | Amount of sand (kg) |
350 | 40 |
400 | 60 |
450 | 70 |
500 | 100 |
550 | 130 |
600 | 160 |
650 | 175 |
750 | 300 |
800 | 330 |
*The values presented are general recommendations. Always privilege the information provided by the supplier of your filter/filtration system.