Rocket type filter are only good as sendiment filtration ie 10 micron . usually cannot do a good job if incoming water is filthy , once packed brown water go all the way through . So you really need the largest capacity type & thousand litre of backwash water

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Added on December 7, 2012, 1:07 pmIf anyone is serious on clean water- move your residence to any Hilly area , or prestigeous areas like Putra Jaya , Shah Alam. Life is never fair . I have a Rm3400 medium size Bac free system -need 10mins back wash every 2 days-water bill went up by at least Rm20 in UEP Subang

This post has been edited by sigmatron: Dec 7 2012, 01:11 PM