Swimming instructor drowns in condominium pool

KOTA KINABALU: A 31-year-old swimming instructor from Brunei drowned at a condominium pool here on Wednesday. The victim, Muhammad Raemy Abdul Rahman, failed to resurface after diving into the pool, which led his fiancée – who was with him – to raise the alarm at about 11.40am. City police chief Asst Comm M.Chandra said the … More Swimming instructor drowns in condominium pool

Alum as Clarifier and Flocculant – Effect of Alum on Filtration Systems

Although modern polymeric alternatives (eg. poly(aluminium chloride), polyDADMACs and polyacrylamides) are widely available, alum (aluminium sulfate, Al2(SO4)3) is still extensively used as a flocculant for swimming pools and, for that matter, other bodies of water, such as dams, ponds and reservoirs. Alum as Clarifier and Flocculant The role of clarifiers and flocculants in swimming pool … More Alum as Clarifier and Flocculant – Effect of Alum on Filtration Systems