You can archive an eligible Pool, but archiving does not delete it.
When you can archive a Pool
All of these conditions must be met:
Its current balance is zero. Pool with a balance >$0 cannot be archived.
It has never held a balance. Pools with a spent balance cannot be archived.
You are its only member. Pools with invitations or other members cannot be archived.
Archiving a Pool does not delete it. Pools that don’t meet all three conditions cannot currently be archived.
Closing your overall account
Archiving one Pool is different from closing your overall Pool account. To close your account, see Closing your Pool account.