Have you ever arrived at the draft site, had everything hooked up and realized you are unable to get a prime? So you go through and beat all the connections with a rubber mallet and still no prime. Well, Waterway can solve that issue by testing the hard suction hose and finding those bad lengths. This is done by placing clear disks on each end of the length and hooking it up to a suction pump to bring the hose down to a vacuum of 22 in/hg. Once a vacuum is achieved the length is checked for any leaks or de-lamination.