Gary Slusser wrote:
An added benefit? for my DIYer customer is that he is intimately involved in the assembly, setup, programming, installation AND service of his softener.
In your mind (obviously) but in the real world... the trained eye of a professional would have spotted the defective adapter during the assembly of the softener and solved the problem right there and then rather than wait till later for the homeowner to deal with it.
You (understandably) attempt, in your mind and in your posts, to mitigate the disadvantages of buying unassembled parts of a water treatment equipment system (long distance) that no trained eye at the anonymous shipper inspects before being shipped to the untrained DIYer who doesn't know what to look for during assembly is but ONE of the disadvantages in buying long distance from an anonymous drop-shipper that you so flippantly dismiss.
A water treatment professional would have provided a matching size control valve to fit the 4" opening in the resin tank, rather than a much smaller 2.5" control valve, eliminating
the need for an unnecessary adapter that introduced at least two more sealing surfaces that can possibly leak for the unsuspecting and untrained end user to deal with.
Using more parts than necessary is the plumber's mentality
(my apologies to plumbers who don't) of why use two parts when you can use three or four
which the homeowner pays for in one way or another time and time again.
Your repeated generalizing that no local water treatment professional provides timely service nor stocks parts for what they sell transcends ignorance and is either sheer stupidity or just plain snake oil salesmanship
. Professionals do provide timely service and stock parts for what they sell. As a result of those professional business practices their customers enjoy their soft water and don't post on self-help forums. It is disingenuous for you to arbitrarily and unilaterally accuse ethical and responsible professionals of lowering their business practices to your level when they don't.
Your customer got a defective part that should never have been shipped and never should have been installed.
They got what they paid for
and they'll (hopefully) have soft water again on Tuesday or Wednesday.