Strange white circles around the plumbing fixtures(faucets)

[revitPWC6K]

Hello, I experienced strange visibility of the same family of the sink faucet - which in one model started to be visible 

strange white surrounding around this after copying the family to new model (in original model, visibility is OK). 

- it is the same family, whitout changes

- the issue is neverthlesss hte detail (in coarse, detailed, medium it is always visible)

- i did not see in VG any applicable property (line) within the "plumbing fixtures" category

What is it ? please help me to turn it off on the other model 

thank You

EDIT: 

it looks like the "show hidden lines : none" turns off the white surrounding. but on the original model without this problem i may have this set to "show hidden lines : By Discipline"

Sink Faucets how they should look like

strange white circles around faucets in other model

[revitPWC6K]

dear Richard, 

solution is to untick this small thicker"Draw MEP Hidden Lines"  in MEP Settings window 😉

[fabiosato]

Hello,

Another option is to make the outside and inside gap values smaller.