$5 NLHE 6-max: A9 river pot size bet

29/20/AF 3.3/ 3bet 6.7 / 83hands
once he checks on the river, he should have a medium strong hand with showdown equity. Although I'm not really repping anything, since I'd be betting the turn with a draw/set, he should be able to fold most of his range if I bet pot. is it ok?

IPoker, $0.02/$0.05 No Limit Hold'em Cash, 6 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

BB: $6.59 (131.8 bb)
UTG: $4.65 (93 bb)
MP: $3.19 (63.8 bb)
Hero (CO): $5.74 (114.8 bb)
BTN: $1.52 (30.4 bb)
SB: $5.03 (100.6 bb)

Preflop: Hero is CO with 9 A
2 folds, Hero raises to $0.15, 2 folds, BB calls $0.10

Flop: ($0.32) 5 2 3 (2 players)
BB checks, Hero bets $0.20, BB calls $0.20

Turn: ($0.72) T (2 players)
BB checks, Hero checks

River: ($0.72) 7 (2 players)
BB checks, Hero bets $0.72

Don't bet the flop.

I think you have a higher rate of success betting turn than you do river. You don't rep anything other than 77. In short, don't bet this flop unless you intend to barrel when called.

Pretty sure he reps a flush on the river

I find it hard to believe a good capable TAG isn't double barreling a FD here. If villain doesn't think about that and can only think on level one then surely it is a bad idea to bluff him in the first place?