As Pam OKW says they are 'just a pool'.
In theory at least, the lack of slides and so on, should ensure that children prefer the main pool, and they are therefore quiet enough to sunbathe poolside and read a book quietly.
In practice, this is not always the case! On occasion you can get families with screaming children jumping into the pool.
'quiet pools' don't have lifeguards (at least not at Boardwalk).
Andrew