As you could see, up to a TDS of 1000 Mg/L in the city water, RO will be able to produce 55 to 56 M3/H. At that TDS level, the booster pump will be at its maximum performance. Should the city TDS exceed 1000 Mg/L, say 1200 Mg/L, RO will still able to produce 53 M3/H and the permeate TDS will be approx. 82 to 85 Mg/L.