The Pool at The Edwardian Manchester Hotel
Radisson Blu Edwardian Manchester's pool is endorsed by those who travel for a living. Of the 7 publications that we monitored, 3 endorsed the pool, like Michelin Guide, Oyster and Star Service.
The Edwardian Manchester Hotel 
Michelin Guide
Oyster
Star Service
Michelin Guide "Great basement pool and spa"
Oyster "The spa is suitably swanky, especially the large pool, and the two on-site dining options are both excellent"
Star Service "An indoor swimming pool, sauna, and steam room are part of the membership package, which is free to in-house visitors"
