If you want to save money on wood do what I did. #1 (definately ask the job supervisor first) go to a construction site around your house where they are building new homes and look in the dumpsters. You would not believe what they throw away. I picked up a bunch of 2 x 4's and whole and half...
It is also best to test your ph at the end of the day for best results ! I have used kent buffer for years and it has always work great for me !! Good luck !!