I have a Hayward Swimclear Cartridge Filter and I've realized that my air relief tube filter has been missing for at least a couple years. The part is CX3000JI. I'm not sure if it's necessary for me to replace it or not. Is this part simply there to prevent any big debris from getting lodged in the air relief valve or does it serve some other purpose as well? Would it affect the pressure gauge readings or anything like that?