Water spills out of my blower on my starite pool heater model sr33na. Is it a gasket?

This is what you need as a replacement...http://www.amazon.com/s/ref=nb_sb_noss?u...
If repairing, I've heard people used Brass Rod and Flux, then they Brazed, any holes closed. Most times???, the tube is THIN from Inside out. Commonly due to improper water chemistry maintenance, the Low pH, low Total Alkalinity, and Low Calcium Hardness - all factors - to Corrosive water, eating away at any metal it comes in contact with. In your case, the heat exchanger.
The Silver solder might be, as any good repair, could be an option/alternative vs. replacement. You still have to open the combustion chamber to get access to coil. Then pinpointing the actual rupture. Good Luck. This is what you need as a replacement... http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=77707-0234+Pentair If repairing, I've heard people used Brass Rod and Flux, then they Brazed, any holes closed. Most times???, the tube is THIN from Inside out. Commonly due to improper water chemistry maintenance, the Low pH, low Total Alkalinity, and Low Calcium Hardness - all factors - to Corrosive water, eating away at any metal it comes in contact with. In your case, the heat exchanger. The Silver solder might be, as any good repair, could be an option/alternative vs. replacement. You still have to open the combustion chamber to get access to coil. Then pinpointing the actual rupture. Good Luck.