Air Relief Hayward Sand filter

I have a Hayward S244T sand filter and I keep having issues with trapped air in my sand filter.  It eventually goes away. I ended up installing a Tee with valve where the pressure gauge is to try to relieve the problem.  The idea was that I was going to open the valve to let air out but that didn’t seem to help.  I wanted to install an air relief valve on the valve.  What would you recommend?  All my components are 1/4” not fittings.  Thank you