LO8 hand - flopped nut flush, no low for me

[Alchemist]

I'm in the BB of a loose $1/2 limit game.

I get K [img]/images/graemlins/spade.gif[/img] K [img]/images/graemlins/heart.gif[/img] J [img]/images/graemlins/heart.gif[/img] 4 [img]/images/graemlins/club.gif[/img] and get 3 limpers and a poster OTB who checks and the SB completes.

Six of us see the flop of A [img]/images/graemlins/heart.gif[/img] 2 [img]/images/graemlins/heart.gif[/img] 8 [img]/images/graemlins/heart.gif[/img]

SB checks, I bet, 2 calls, LP raises, call, call, I reraise, everyone calls.

Turn: 7 [img]/images/graemlins/spade.gif[/img]

SB checks. Pot is getting very big now and no one is going anywhere. Was the flop reraise correct and should I continue to jam the turn as well?