It's very easy to lower the ph of water. All you need is plain vinegar. If you do not have a ph pin they are not that expensive. My tap water runs about 7.0 if I add 17 cc or 1tbls plus 1/2 tsp of apple cider vinegar it will test close to 6.3. If you are adding nutes to the mix it will take less vinegar to lower the ph.
ditdotter Reviewed by ditdotter on . Mandala Hashberry log #1 Yo crew, long time since Ive grown so please let me know if there's any conflicts in the following set up, this is going to be my log for the grow as well. I intend to grow 4 to 5 at a time. Light : 400w MH/HPS electronic switchable ballast. Soil : Schultz Potting soil with peat moss, perlite, composed organic materials, and lime for ph balance. (0.08 - 0.12 - 0.08) N-P-K Pots : 5 3gal pots Planning on maintaining a straight water feed until 4th node arise's and then start feeding it Rating: 5