JJ - overpair to the board against a maniac - how's my line?

[thehof]

Villain is 73/28/2.4 over 75 hands (although most from FreePHG). I've seen him play about 15-20 hands, haven't seen him show down anything - he likes to bet a small fraction of the pot on the river and people were folding.

I seem to have a hole in my game - regarding players that PT classifies as maniacs - I have serious trouble putting them on a hand. Any advice on that subject would be appreciated.

How's my line for this hand?

Party Poker
No Limit Holdem Ring game
Blinds: $0.10/$0.25
10 players
Converter

Stack sizes:
UTG: $46.42
UTG+1: $30.52
UTG+2: $22.90
MP1: $34.43
MP2: $19
MP3: $25.90
CO: $24.40
Hero: $30.60
SB: $6.50
BB: $32.99

Pre-flop: (10 players) Hero is Button with J[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/heart.gif[/img]
3 folds, MP1 calls, MP2 calls, 2 folds, <font color="#cc0000">Hero raises to $1.75</font>, SB folds, BB calls, 2 folds.

Flop: 6[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/club.gif[/img] ($4.1, 2 players)
<font color="#cc0000">BB bets $3.2</font>, <font color="#cc0000">Hero raises to $8</font>, BB calls.

Turn: 3[img]/images/graemlins/club.gif[/img] ($20.1, 2 players)
BB checks, Hero checks.

River: 2[img]/images/graemlins/heart.gif[/img] ($20.1, 2 players)
<font color="#cc0000">BB bets $6.82</font>, Hero calls.