I HAVE A USED PORTABLE SPA THAT WAS PARTIALLY SUNKEN TO LOOK LIKE IT WAS BUILT IN. IT LOSES WATER DAILY AND IT IS NOT STAYING CLORINATED AND IS FOAMING. ALSO ALOT OF DIRT AND STUFF GET IN IT AND WATER IS CLOUDY. I PUT CLORINE EVERY OTHER DAY PLUS CHEMICALS TO DE FOAM AND DE CLOUD THE WATER AND IT SEEMS TO GET WORSE DAILY. I HAVE NO IDEA WHAT KIND OF SPA IT IS OR HOW OLD IT IS. EVERYTHING SEEMS TO WORK FINE AS FAR AS I CAN TELL. I WAS THINKING ABOUT DRAINING IT AND STARTING OVER BUT I CANT FIGURE OUT HOW TO DO THAT.