Hi i just instaled a new 300gpd RO in the garege and as i did with the first1 i left it to run for 2 hrs to wash all the chemicals from the system b4 starting production, i tested the TDS and it was reading 66, i left it another hr and still the same, now the water fore this RO is from the same tap, the RO is exactly the same as the other and i get only 10 TDS from the first RO so im very confused why i get 66 form this1, any sugestions or ideias on how to sort it would be very much apreciated