1. Expand your range of raising hands
First things first — bet your medium strength and stronger hands against these calling stations.
Let's say you're playing $1/$2 no limit hold'em. You have a reasonably tight-aggressive image (to the players who are paying attention). They're on your right and call the big blind. You have . Raise to $20. Expect your better opponents to fold, and for the calling station on your right to call with just about any hand. He's already in for $2, so he'll tend to call for another $18.
True, occasionally he will be ahead of you. But over time, he will call you more frequently when he is behind, increasing your profit in the process.
2. Don't get fancy
Don't plan on check-raising, trapping, slow playing, or making other "clever" moves against the calling stations. They're unlikely to bet or move off of their hands based on what you do, so don't make any plays that depend on manipulating them into the wrong action.
They have one big wrong action, and they perform it repeatedly — they call too much. They also raise too infrequently. Take advantage as much as you can by being aggressive when you judge yourself to be in the lead.
3. Respect their action (rare though it may be)
When your calling station opponent does make an aggressive move, be inclined to get out of the way — he is almost certainly loaded. Why else would he deviate from his default action of checking and calling? Even calling stations recognize situations when they almost surely have a great hand. If he three-bets preflop in hold'em, or raises in stud when he hits an ace, give him credit for the hand he is representing and (unless you hold a monster) fold.
There is one significant exception to this recommendation worth noting. Some of these calling stations — unlike the weak-tight players we were discussing recently — cannot back down from a fight once they're in it. If you're behind them, but have a big draw, you may often get paid off when you hit.
Let's say you are in a $2/$5 no limit hold'em game against a few of these calling stations. One of them uncharacteristically three-bets preflop. His action knocks out all of the other players except for you. You have a small pair. Even though you are nearly certain that he is far ahead of you, with aces or kings likely, if your stacks are deep enough, call his raise with your underpair. If you hit your set, you are almost certain to stack him off, since he won't be able to fold his big hand no matter what you do.
4. Don't forget a value bet on the river
When in doubt on the river, bet. Since a calling station rarely shows strength or weakness in the play of the hand, and he is likely to start with a very wide range, you are more likely than not to be in the lead on the river and should not miss that opportunity to bet for value.
True, he may have you beaten by having picked up a hidden winner. But more often he will be weaker than you and will call. Your overall profit depends on taking advantage of these extra opportunities when he will call you and lose.
5. Stick around while they are in the game
It's tempting to give up, out of frustration, when you suffer bad beat after bad beat to calling stations. They don't have the sense to fold when behind, and will sometimes outdraw you. It happens.
But if you quit the game out of frustration, you are missing an opportunity to win from a player who will lose to you in the long run. As long as your skills and self-control are still going strong, you want to stay in a game with these players as long as you can.
The rules of probability are immutable. You must have sufficient faith in them to sustain you even when the short term effects of luck are driving you crazy.