Sorry Dan you have lost me now
You obviously don't mean the Automatic bypass valve
Feed me a little more info and i might just catch up with you![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
You obviously don't mean the Automatic bypass valve
Feed me a little more info and i might just catch up with you