From our ground water we found balck partical in large amount and it is making trouble for R.O.system and chock the PPR pipelines,we have an analysis report as follows

Ph-7.4
Turbidity: 5-7 NTU
Total hardness: 300 ppm
T.D.S.:380 ppm
Iron:0.3ppm
Above black particals does not remove by birm filter. Please suggest a suitable system which is remove this problum.
Hemant sethi KOTA (Raj)>contact removed<