Phone down the loo

My son had an accident with his phone a couple of weeks ago. He dropped it down the loo, not sure how it happened. I bought a rescue bag to try and dry it out. Then I bought a new screen because I thought it was the screen that wasn't working. I tried replacing it this evening but no. It didn't work. So it looks like I will have to replace it with a different phone. When I took it apart I could see a lot of damage on the PCB including rust and what looked like corrosion. If you own a Motorola Moto E, I do not recommend submerging it in water,