g465777 said:
7.0-7.2 straight from tap.
The reading from the tap doesn't accurately portray what it is 24 hours from now. I would recommend letting some water sit for at least 24 hours, then test it.
A Buffer Recipe is
HERE
Now, the key here is to have a measureable amount of water, let it sit for 24 hours. Then start to add the buffer...slowly. Record your results. When you get to your desired ph and hardness, stop, and do the math.
For example, if you use 5 gallons of water as your test, and there ends up being 65 gallons of water (approximately), multiply the amount of buffer by 13.
