Osculati Piper Vacuum Bilge Pump

[mikeywil]

Has anyone used one of these vacuum pumps?

It seems fairly simple and ingenious... (follow link for full details)

Force 4 Piper Vacuum Bilge Pump | Force 4 Chandlery

 

[andsarkit]

Does it have a non return valve as I guess it could siphon water into the boat when it is not moving?

 

[penfold]

It's an eductor, very unlikely to siphon as it will empty itself in use as it sucks air as well as it sucks water.