when i was looking to by a tower (last december) i called hydrocide several times, never got an answer. finally just drove to the address to check. called some others and no answer from loud liquid, or warlocks. only able to look on each website. only sacramento area tower "store" i could speak to by phone was wakeair. (oh yeah, i bought their tower and some other stuff...)
but back to your question: they were in business this past winter, but that's the last i checked.