F5 not routiing traffic through floating IP

For such flow SNAT would not change client IP because F5 is processing only traffic returning from server not traffic coming from client to server.

The above flow applies when user tried to access the server directly .But when they access the vip , request is coming into the F5 and from pool we never see any response back to the client . For request processing on f5 if i use SNAT , client IP will not be passed to the server .