Scuba tank,Hydro,Visual,tumble,Valve service,O-2 clean if Nitrox too much $$ ?

[Chris H]

OK.  Let's approach this in a different direction.  Matt and I both own compressors and still give plenty of money to brick and mortar dive shops.

Did you question the dive shop that told you a valve rebuild was required?  You brought up insurance.  Perhaps the LDS's insurance company requires the valve be serviced?  Insurance and litigation is the root o most evil in this country.  Throw in religion and you have a trifecta, but that is probably a different topic.

BTW, I don't have the OxyHacker book.