un merging network bands

Hello!

Internet is working great

here is the issue

I have pods set up in the house and merged my network bands

I am adding a Nest smoke detector which requires a 2.4 band to set up

Can i remove the pods (from the network)

switch to separate bands

set up the smoke detector 

and then add pods back and merge bands again

just wondering if that was a decent plan 

thank you