Tap water (not filtered)
pH = 7.6 (ideal)
Chlorine = 1.6 (there)
Water of my fountain (filtered)
pH = 7.4 (barely perceptible difference, or assay reagent unequal?)
Chlorine = 1.3 (same remark as for pH)
I do not know what the composition of your cartridge filtration .... but I hope it is not activated charcoal .. !! ??
because such a result on chlorine is absolutely not consistent with activated carbon, which rightly has very good efficacy about it .. !!
but this filter is presented in "double action" (sediment + chlorine) ..., very puzzled in the light of this result before / after .............
@ Justemilieu ....;
I have already spoken suffisemment ... I'm not going to repeat every time ...
I said, after all .. "all ideas" ... and everyone thinks what he wants .......
If you want more information, more precisely, just you seek information from experts on the issue .....
(Not the aquarium ..)
careful not to generalize a particular case, especially when one does not know the type of the device, its exact composition, its quality and performance levels, its use ....
because "bad" devices ..., it exists ... (counterfeit, low-end Chinese device ..), but without denying the case presented here and its impacts ....., it is not reasonable to judging a type of device in general ....... !!
(It is already not normal to have a pH as low output of osmosis .. !!!, therefore, doubt is widely allowed on the operation or quality of this
device ... but not to question all devices of this type! )
well hello to you !! ...