Shorthanded Omaha hand

[LA_Price]

£2-£4 game at the Broadway Casino in birmingham. It's late in the night and the casino is about to close so this is the last hand and it's 3 handed.

button(£1090)-me
sb (£550)
bb (£450)- bad player. Loose aggressive preflop and plays weak postflop. He's also stuck about a grand on the night.

I raise on the button to 10 with A [img]/images/graemlins/club.gif[/img]Q [img]/images/graemlins/diamond.gif[/img]4 [img]/images/graemlins/diamond.gif[/img] 4 [img]/images/graemlins/club.gif[/img]
sb folds and BB makes it 30
This means he has 4 cards and is trying to build a big pot

I call and the flop comes J [img]/images/graemlins/club.gif[/img]7 [img]/images/graemlins/spade.gif[/img]5 [img]/images/graemlins/club.gif[/img]
he checks to me, I bet 50 and he calls.
He's only checkraised me once all night and it was on a drawless board so i'm fairly certain he doesn't have a monster here. When he calls i put him on a 8 card draw maximum and probably worse

turn comes Q [img]/images/graemlins/spade.gif[/img]
he checks and i bet 100 and he flat calls again

river comes 5 [img]/images/graemlins/spade.gif[/img]

Should i bet to represent the full house and move him off a possible flush or check knowing my hand is probably good?