All of us start from crying with nothing, so no offense, and let's try to find out.
1. Good Looking
One of my client told me the main reason he did not purchase from China before as he wanted some beautiful things. Whenever he look at the solids control equipment, or the whole mud system, or even the drawing, must feel like he is staring some beautiful ladies.
Yeah, it is different Hamlet from differnt eyes. whatever, it can not let you feel unhappy or feel ugly.
2. Check the Painting
Not only the solids control equipment, also the mud tanks. Try and check the view from different side of the mud system. People are doing good, you can feel it.
3. Check the Connection
The mud system normally contains several equipment, lots of pipes, flanges. Check if they are keep in line like army, or struggling to be where they are.
4. YOU ARE THE USER
Suppose you are the user, what will you like?
Or any engineering thinking you find from other place. is it simple & friendly enough?

Then if you did not tell anyone you are not professional, it already seems like a professional guy checking. So let's move on.
Now it is time to check how the system working!

As normally the mus system is customized, and the four phase solids control equipment, shale shaker, desander, desilter, decanter centrifuge, are combined in different way, and installed onto mud tanks properly.
Then maybe it is time to:
5.Follow the drilling mud flow, and walk around, check if anything abnormal, valves on the way, and logically, is it running perfect.
6.Finally, take some pictures. Good or bad. Or take some pictures with the mud system. To get a perfect report.