How do you lower the ph of the water?

Grow Cycle
1

A customer has a question and I hope we can get some opinions on it, thanks

How do you lower the ph of the water that you are using I’m using lime in my soul but I’m still hovering between 6.8 and 7.2?

2

Ph down. Several suppliers, you can get it on Amazon

3

Peat moss will lower the ph a bit.

4

Dolomite lime in soil is supposed to buffer soil too.