Why do I have a check valve here?

nickcasa75

Active member
Mar 18, 2023
33
orlando fl
Sorry for the obscure title. I bought the house a year ago here in Orlando FL. 7500 gallon pool with spa spill over and water fall feature. I have an IFCS as you can see from the pic, but I am unsure as to why there is a check valve on the plumbing leading to the IFCS. Perhaps it's to keep the spa from draining maybe???
 

Attachments

  • 1111111.jpg
    1111111.jpg
    337.1 KB · Views: 12