PH Buffered at 8.2 with Relatively Low Hardness
So, whatever makes Albuquerque water hard has no trouble buffering the ph to 8.2. After aerating out of the tap for a while, the local water was 8.2 ph, 8 dKH and 12 dGH. I got down to 5 dKH and 8 dGH, but it’s still a stiff 8.2 ph. I keep on seeing fish and plants that are specified for harder water, but lower ph and wondering how that’s possible. But I have realized all hard water minerals must not be created equal.
Does anyone have a reference on ph buffers that goes beyond the typical, “you have phosphate buffers and carbonate buffers?” I’m interested in why my hard water buffers at 8.2, but someone else’s may just be in the high 7’s.