When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Make sure the A/C tech performs a thorough system flush to rid it of any contaminants that are still in your lines and other parts.
You don't want to contaminate the new drier, compressor, and orifice tube. I would also have the tech pull a vacuum for 2 hours after the system has been flushed and before it's been charged with refrigerant to ensure all moisture has been purged from the system.