tri in a pool..

The three tris I've done this summer have all been open water. I'm thinking about doing one more sprint (why not?) In October, and the swim is in a pool. On the FAQs for the event they discuss OWS not pools. I emailed them asking if it's serpentine through the pool or dedicated lane and I'm waiting to hear back.
Thought of a couple more things - do they allow a diving start? And flip turns or only open turns? I read an article about how pool swimming can cut your time depending on the size of the pool because you're "resting" on the turns and never really getting up into LT, and how pushing off the wall on turns makes your time faster, thus a short pool requiring more turns would be faster than an olympic sized pool, and certainly faster than OWS where you pretty much don't rest. My curiosity has me interested in how all this effects my swim time.

I've done a very short sprint tri in a pool. In that one we started in the water but could push off the walls. Flip turns were allowed. Two people shared a lane by doing circle swim (always on the right side of the lane) and there was a volunteer that counted laps for you and put a number in the water for you to see on the last couple of laps.

I've also seen serpentine tris.

I'll be interested to hear how yours is going to be run.

Ok, they responded back. They have you serpentine through the pool twice - at the end of the first time through, participants will walk back to the start and do it a second time for a total of 600 m. No diving, but flip turns are allowed if it's clear.
I'm very interested in this, and think i'll do it just for the experience of a pool.