# Question Please

**URL:** <https://forum.nachi.org/t/question-please/50829>\
**Category:** Inspecting HVAC Systems\
**Created:** [July 10, 2010, 1:32pm UTC](https://forum.nachi.org/t/question-please/50829 "2010-07-10T13:32:40Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![Brian\_A.MacNeish](https://avatars.discourse-cdn.com/v4/letter/b/90db22/32.png) [@Brian\_A.MacNeish](https://forum.nachi.org/u/Brian_A.MacNeish)\
**Post date:** [July 11, 2010, 3:43am UTC](https://forum.nachi.org/t/question-please/50829/14 "2010-07-11T03:43:45Z")

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> [@dandersen](#):
>
> #2 checking temperature output at the evaporator requires drilling the holes in the air duct system. Is that in your SOP? Do you have permission from the seller to drill holes in their house?

Your HVAC contractors not using anti-vibration collars in their duct systems at/near the unit plenums??

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