Agree with sberry. Obviously there is nothing wrong with testing, but a 2 post lift isn't exactly considered a high stress application. This is very similar to the standard Car forum discussion of "You need grade 8 bolts for that windshield wiper arm".
Don't get me wrong, better safe than sorry with a lift, but we aren't lifting heavy machinery here.
Better safe than sorry.... exactly. You have made the point for testing.
We are talking about lifting machinery with a device designed to lift a specified weight, anchored by fasteners designed to carry a specific weight. The base plate and the fasteners are designed based on the specifications of the capacity of the device and the concrete's ability to hold that device.
On a bigger capacity device it will have a bigger baseplate and either larger diameter or increased quantity of fasteners and perhaps thicker concrete.
So it is all relative. The device is lifting a vehicle overhead and that vehicle is heavy enough to kill you. Some testing is prudent... of the lift itself (ALI Certified), and of the concrete it sits on.
Its great you did it better, nothing wrong with that but its certainly not required.
Testing does nothing to increase the capacity of the product or device. And it doesn't make the concrete you receive "
better". All the testing does is verify you got what you paid for and that you are meeting the requirements of the device manufacture.
We see fella's all the time posting photo's and stories here on the GJ of how their newly poured concrete has issues.
Permits require footer inspections, framing inspection, wiring inspections, etc. and you take that in stride. But verification of concrete strength is somehow over the top crazy... even though states and jurisdictions often specify these same tests on a regular basis.
Here we have a valid, industry accepted, way of verification, yet the mere mention of it is considered, by some, as overkill, excessive, better than it needs to be.
