[Q] Testing the S5 water resistance? topic

Hi! I just got the Galaxy S5 4G+ a couple weeks ago and I absolutely love it. However, I have been reluctant to get it wet as I have read about some S5s getting water damaged due to manufacturing defects with the waterproof seals on the back cover and charging port. I was wondering if there is any way to test if my S5 is sealed properly without the risk of completely frying it. I was thinking of sealing the battery contacts with a bit of tape, so that there is no electricity flowing through the phone in case it does get wet, then submerging it for a bit and checking if there is any water inside the sealed areas/if the water-damage indicators change colour. What do you think?