Using peat to lower water PH?
I have hard water with a pH of about 8. It hasn't rained much lately so I've been watering with a lot of my nasty tap water.
Years back I used to have Discus fish and they require soft, acidic water, which I collected in 6 gallon jugs from a roadside runoff drain. The water was perfect, and going to get it was a beautiful Sunday morning drive in the woods. That was when gas was about buck a gallon, or less. Today's gas prices, and my poor fuel mileage, and lack of time prevent that at present.
One method of conditioning water (which I never used) was by filtering it through peat. A container was set up and filled with water. A pump recirculated the water from over the peat substrate until the desired pH was attained.
I heard of using vinegar to lower the ph, but I've also used vinegar to kill weeds and a few tree stumps.
It makes me wonder if peat filtration would be a better solution.....or am I missing some tid-bit of biological wisdom that would render this harmful to my plants.