Hi there. I have a 15x48 intex ultra frame pool. I recently battled some algae (which I believe is finally dead!) and am now faced with the dead gray crud all over the bottom of my pool. I only have the vaccum that hooks up to your garden hose and the mesh bag doesn't get the dust. I replaced the bag with a pillow case and thought I got it all, but I was wrong. Since we are planning on keeping with this pool for a while, I want to invest in a vacuum that can hook up to the pump (1000gph). Any suggestions? Thanks!