I HAVE A 15YR OLD(MOR/FLO SOLAR STREAM)SOLARHOT WATER HEATER.(THE UNIT HAS WORKED FLAWLESSLY FOR THIS TIME. I RECENTLY REPLACED ALL OF THE PIPE 3/4 MALE SHORT FITTINGS COMING OUT OF THE WATER HEATER DUE TO RUSTING AND LEAKING, THE UNIT NOW MAKES TO HOT OF WATER AND NOT VERY MUCH. I THINK I HAVE DISCOVERED THERE ARE TUBES THAT GO INTO THE TANK FROM THE DIFFERENT PIPE CONNECTIONS (THE OLD TUBES WERE PLASTIC) AND HAVE BASICALLY DISSINTEGRATED. CANT FIND ANYONE IN PHX THAT HAS THE (FITTINGS WITH TUBES) OR CAN TELL ME WHAT LEGNTH EACH EXTENSION TUBE DOWN INTO THE TANK SHOULD BE IE. COLD,HOT,SOLAR IN,SOLAR OUT. CAN YOU HELP ME?? ARE THERE ANY DRAWINGS OR INFO ON THESE SYTEMS??? I AM TOLD THAT MOR/FLO HAS GONE OUT OF BUISNESS?? THE TANK IS 80 GALLONS