What I did the second time around was transferred it to a secondary carboy to let it clear a bit and because I needed my primary for another brew at the time. This was technically an unnecessary step that ran a bit of extra risk of oxidation but it worked out pretty well for me. Then I transferred to a purged keg for the dry hop.
I put each batch of dry hops in a muslin bag very loosely tied because I’ve learned that pellets swell in bags quite a bit during dry hopping so you want them to be loose and not cramped in the bag. I then sealed up the keg. I opened the keg one more time to add the second dry hop. I keep my carboys and kegs in my basement which is between 65-70 year round so I dry hopped at room temp.
When it had sat for the recommended 5 days after the second dry hop addition, I transferred to an empty purged keg using beer line pushed with CO2 to prevent any oxygen exposure. I wanted to see if it made a difference to keep the container sealed after dry hopping to help preserve more aroma. I was very pleased with the results and would do it this way again for a heavily dry hopped beer.
:cheers:
Rad