Nut flush on turn how to get more money in?

[wc3x_tester]

No reads. 50nl

i have A5h in CO, all folded to me, i limp, Button Calls, SB and BB calls

flop 289, 2 hearts

SB checked, BB check, i check, button bets 1$, SB and BB fold, i call

turn is 3h

i check, bets 1$, i call

river is blank
i check, bets 3$, i reraise 9$, calls

Button has K high flush

[Renton]

open for raise preflop, bet out on every street