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Fold equity + good draw + the fact that they may call / check turn and you can take a free card = def bet, something like t2,000.

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I agree definitely bet here. There is a chance you just take it down and if not you still have 2 chances to hit your flush. I agree that if only one calls he probably checks to you and you might get to see a free river if you miss on the turn.

Edit: I agree that you can't call if you do get CRAI on this flop but I don't see that happening on this kind of flop with a limped pot. Plus even if it does happen you still will have a healthy chip count after only investing T2800.