mkm, you should have no issues. All regulars here are well aware of MB's habit, and many of us have picked up on it as well. In case you missed it - We shower with our 1911's 
I'm well aware of the showering with your 1911's mantra, but yall always say it in that tone of type (I'm coining that term) with a wry smile which makes me wonder how much actual truth is in that statement.

The Chlorine I would imagine is more corrosive than the water would be.
That was one of my biggest concerns and it proved to be worse than lake water on my pocket knife which has recently been swimming in both. I, especially now, would have no concerns or second thoughts about swimming, rafting, etc. with one of my pistols in a natural body of water.
Did you every think about moving if you have to be that worried at the pool party 
I don't really live in that bad of town. The aforementioned shooting occured 5 hours away in a different state, albeit a similar city. It was more about the situation. College town, holiday, alcohol (not me), and rambunctious partiers can lead to quick mood changes and conflict. The shooting I mentioned was instigated by a couple of people who didn't know each other and most of the victims were innocent bystanders. Swimsuits are already close enough to being caught with your pants down; I wanted to minimize my vulnerability as much as possible. On that note, my days here are numbered.
Rinse the gun off and it will be fine... Throw away the ammo!
I plan to put the ammo aside labeled as wet and shoot it next time I go to the range. It's more of a curiousity than anything else.
For this kind of carry, I'd think something like a P3AT or a LCP would be ideal.....
A smaller gun would have been ideal; however, I had to use what I have available.
Now onto the status report.
I admittedly didn't give the gun as good of a cleaning last night as I should have. I did, however, do a complete disassembly. I wiped everything off, gave a little more attention to areas that needed it, used compressed air to blow out the nooks and crannies, and did a proper cleaning this morning. The main components of the actual gun showed no harm at all, but some of the small internal metal pieces had a minute amount of surface rust. As a disclaimer, I haven't done a full breakdown and cleaning in a while and do carry in the hot humid South. Rust on a firearm never makes me happy, but I didn't see anything that was overly concerning or that would have affected functioning. It was easily cleaned up and ready to go again. Whoever said Glocks were all plastic has never taken one apart.
There was one thing that took a fairly hard but not critical hit, the magazine. All the witness holes had surface rust on the exterior. Once disassembled, the interior along the side with the wholes had quite a bit of surface rust as well. It cleaned easily, thankfully. It was a good reminder that magazine maintenance is crucial too.
I don't foresee many more pool swimmings with my Glocks, but I would do it again if I felt the need. I have much less hesitation to carry it in natural water as that is more likely to be the source of future outings.