How fast should I be draining the mashtun?
I go as fast as it will go, I use a manifold so no fears, obviously a little more caution is warranted for a false bottom.
Also, when I add sparge water, how long to I let it sit in there.
I go with 15 minutes to ensure maximum gain of malty goodness. Less is probably fine, but a couple more minutes doesn't hurt anything. I throw my first mash water right on the burner while I'm sparging and it typically isn't boiling by the time I am ready to add my sparge water.
Secondary: Oktoberfest, German Pilsner, Double IPA,
In Bottles: Lucknow IPA clone, Rough Rider Brown Ale clone,
John Harvard Imperial Stout clone, Hoppy Amber, Witch's Brew (Habanero and Smoked Corn Small Ale), Porter, Dunkleweizen, Dry Stout, Irish Red Ale, American Maple Wheat Ale, Black Wit, Belgian style Wit, Belgian Golden Strong Ale
Kegged: IPA, Saison, Hoppy Brown Ale