Sure, it is your choice and now you have heard all the horror stories about doing so. We have left our pump on here or there over several decades of RVing, most times not intentionally, but never had any extreme issue doing so. We primarily use our water pump even with water hookups available, still waiting for our first fresh water pump to fail.
Shurflo sure makes a noisy water pump but they are very rugged and thus far 100% reliable across 6 rigs for us. There has been a few times where they were running for a couple of days without water in the tank before we noticed, we carry an extra shurflo pump but have not had the need even with the extreme use we put them through.
