My runs are usually 10g to 20g of bho, would a 3 gallon still be big enough for that? Also, what is a good pump. I found a 6 cfm two stage mastercool with 15 microns for $230 but if I don't need that much cfm then I can save. Also any recommendations for a vacuum chamber? I see Vac it pros and provacs everywhere but haven't seen much reviews on them.