We have tested more than 6 different waterfalls from different location in Malaysia. All giving the same TDS number.
Like the one you see above here. My wife, Ms. Vivian Tan is testing the TDS and your guess is ... ?
TDS = ????
Would you have guess "0" (zero) ?
Yes, TDS = Nil = zero = nothing = water only
In my six years testing drinking water for my customer to see, almost 100% my customer would have guess a number.
Simply because most pipe water AND most filters outside would have given you some numbers...!
Therefore, pick Elken Ken RO Filter
lmotbh@hotmail.co.uk