This post is not so much about all of the various doodads and whatchamajiggers in the picture, as it is about the fact that the doodads and whatchamajiggers are not properly supported or protected from damage.
On the far right, the Blue PEX pipe coming out of the floor is the main water supply to the house.
Next, in line, is the Main Water Shut-off.
Next comes the Pressure Reducing Valve.
Next is the Musical Instrument Back Flow Prevention Valve.
Again I am not here today to talk about all these items, but how this set-up is vulnerable to mechanical damage,
including damage from leaning things against it, and collateral damage from a hard night of partying----being in the garage and all.
Approximately 2 feet from the left edge of the picture the pipe takes a 90 degree bend through the wall. There is about a 2-3 inch gap all along the set up to the wall surface, making the 90 degree elbow vulnerable to breaking if force is applied against the assembly.
The assembly should be properly bracketed to the wall as well as have a protective “bollard” (thingamajigger---post) installed to prevent being whacked by large moving objects----party wagons----even a well kicked soccer ball.
PS, for those of you that are new to my blog (or for some other "unexplained" reason have never noticed)all pictures and smiley-face inserts (emoticons) (when I use them) have messages that show up when you point at them with your cursor.
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WA State, Home Inspector Advisory Licensing Board