I am not able to find pine bark mulch, I find pine nuggets at Lowes for $10/bag = 2CUFT, I go for fir/hemlock bark mulch, They are dirt cheap for $20 - $25 yard, One yard is 27 CUFT.
I got a free sample big bag of fir bark mulch and I am happen with them, I re-order 3 yards of Top soils plus 2 yards of composed fir/hemlock bark mulch, it will be here next week.
I ordered 2 PH meter online 2 months ago, they never arrive, so I am not able to test its PH level.