Black Bear here in Spanaway is a cool store for repairs or parts or gifts, but he RAPES on propane prices.
He is consistently 50-75 cents more a gallon than many other places on the same strip.
I cant speak for the black diamond store tho.
I had him revalve and cert a tank for me a year ago. He got all kinds of butt hurt when I asked him for my old brass back. Then he was extremely puzzled when I did not want the tank filled. He just could not understand why I would fix an empty tank and not fill it?? He finally asked if I was having it filled somewhere cheaper (BB was 2.79 gal) and I told him that South End HArdware was only $2.00/gal.
He instantly matched the price like nothing. To drop a third of the price on fuel tells me he is gouging pretty badly.
But they do like to haggle and I like that on parts and supplies.