I beg to differ. I set up UA about ten months ago And that i am astonished by its general performance. In particular the prop is glowing cleanse - see the pic - about 5 months of it had been in tropical waters, the shiny places are bare metal the https://hyperbaricchambercosttobu40617.blog5star.com/36346435/the-basic-principles-of-oxygen-chamber-stoke-on-trent