- Nov 21, 2011
- 21
- Pool Size
- 18000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
I have a Raypak 406. The spa jets have been spewing black chunks. I took the header of the furnace it was full of thin black scales. I used a shop vac and removed the scaling and replace the broken thermostat. Everything works fine now but I'm concerned the heat exchanger must be damaged. Do I need to replace my heater?