Dramatic pH drop in filtered H2O?

[khyberkitsune]

yep pure Na is a no no with H2O, in the resin its bonded with ?? di-alkyl?? what evers. but some Na does get loose as a salt of some type and can screw with K uptake. not that Britta uses this type resin
if you have a GOOD chemistry set you can check for Na in the filtered water.

I think I'll pick one up and do some comparing, I now use a hydro-logic Cl/chloramine filter

Daddy

Practically nil Na in the water after running through the filter, going by taste alone.

khyberkitsune Reviewed by khyberkitsune on 05-19-2010. Dramatic pH drop in filtered H2O? I picked up a fresh Brita water filter yesterday, and have been using it to do some minor water treatment. I noticed something - the pH drops from about 8.5 to a near-perfect ~5.8 just going through the filter. Does anybody else experience this? I typically just use straight tap but I'm willing to roll with a water change, and at least filter it before adding nutes. Looks like if this keeps doing what it does, all I have to do is add nutes after filtering, no pH down required! Rating: 5