My yard has a combination of Toro and Rainbird heads. It wasn't my doing. I bought the house this way. I have 8 sprinkler zones that are never one brand of head. Is there any way to convert (adapter?) the Toro so I can use Rainbird heads? I bought rotating heads and the Rainbird has a great flow while the Toro barely comes out. I don't want to dig up my yard an replace pipe. Thanks in advance . Paul