Do you mean tip the pot because the water was standing on the surface of the soil? or do you mean tip the pot and remove water from a saucer underneath the pot? In the former case, your soil should be amended so that water should pretty much drain right through (add lots of perlite). And if latter, I would never put the plant on a saucer. The water needs to drain out. As to the brown spots on the leaves, it's hard to say. But if the plant is healthy, it should not be that big of a deal. Possibilities include physical damage from animals, bug damage, too strong fertilizer sprayed on, too strong pesticide, weed killer, moving the plant from shade to full sun...could be lots of things.