TDS at the exit of the RO membrane at 002.
I use this membrane since 09/2017.
It's a GE 100GPD membrane that's working with 90psi. I chose to work with the slightly high pressure, to improve the production and so far, can assert that it did not affect the life of it.
I make a manual flush sporadically. Until now I thought about automating this process but I lack the time and willingness to do that.
TDS at the exit of the first stage of the mixed resin (Resin MB 20 - DOW) is 000 and
Silicate is 0.1
This resin should be about 4 months old, approx.
I measure the TDS at the first stage exit so that when the 1st stage marks 001 the water still goes through the second stage that ensures that it reaches tank at 000 reading.
Later I will make the exchange of the resin in the first stage and make the change of position of the cartridges.
Thus the resin used will pass to the first stage and the new one will be in the second stage.
At the output of the second resin stage I do not measure the TDS, so it was explained above.
Silicate is in 0.00 (with fully transparent sample).
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