I've been debating springing for an vortech MP-10 v. buying a jebao rw-4 or wp-10. I'm wondering if the outside magnet on the jebaos can actually go in water. I'd be putting it in an all in one, and my preferred spot for the powerhead is on the back wall, so the "outer" magnet would be in the sump chamber, and thus would be wet. Anyone know if these are long term water safe? Or if I could sub in a different magnet and get it to work safely? Thanks.