The net production of potable water is difficult to estimate at this stage and depends on the government tolerance level of Ca++, {HEAD ~ Mg++salts} after {TAIL ~ dilution} 
after
The net production of potable water is difficult to estimate at this stage and depends on the government tolerance level of Ca++ , { HEAD ~ Mg++salts } after { TAIL ~ dilution }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL