Based on my naked eye's observation, I think the saucer dries up faster.
I kind of regret not collection rain water during the ONLY TIME Nor Cal rained during December.
I feel so spoiled to live in a place where I just fill up my watering can out of the tap.
I'm guessing, all things being equal, whatever allows for more surface area exposed to the air, will evaporate faster.
I'm going to compute the total annual estimated cost for distilled water and compare it with the cost of a reverse osmosis filter.
and ya, uhhhh Tacks, I def should've taken advantage of that rain storm. Really regretting not getting my lazy *** off the couch during winter break.