#14, concerned the wrench looks like a question mark. Still liking #16 a lot. In addition to making the A more recognizable, would it be possible to make another version where instead of a wrench we have a leaking faucet that drops the water drop into the A? Another thought is to have the faucet drop water through the S and make the S look like a pipe in the light blue color. Just some thoughts. Thank you for your hard work.