Re: 51Packard's....51 Packard

Posted by HH56 On 2011/8/4 20:26:40

I think the part you are talking about on the pump is a dome shaped item. If so, it is nothing more than an air chamber to calm the pulsations of the pump a bit--just like some houses have in the plumbing to control a water hammer problem. I don't believe it is on all pumps.