Any thoughts on lowering the PH levels? I'm concerned about adding things to my system and if so how much.

semi wrote, "How did the vitamin C work apollo?" I added 1500 mg with no change that I could see. 24 hrs. later added 2500 mg still nothing.

semi wrote, " I worry some about introducing so much phosphoric acid during this top off. It is aquarium approved for both fish and plants."

topz wrote, "The small amount of vitamin c required to remove the chlorimide from the water is really not enough to change the ph. I use it on a fairly regular basis."

What would be a good amount of vitamin c to add to 850 gals twice a week? Then if I was to use phosphoric acid to bring it down the rest of the way to 7.6 - 7.8

Please advise...let my know if this should work or if you're using a better way to confiscate for the hard water being added.