How are you securely connecting 1" pipe to your pumps?
For testing i am using pipe over 22mm coper with hose clips. I dont dare connect the eductors up
Are you referring to the pump's discharge? You can get adapters from any decent plumbing merchant 1" bsp M x 22mm fem compression or the other way around I'd imagine. If you were thinking of wire reinforced tube, you could just use a 1" bsp M x 1" tail (brass, aluminium, steel or plastic).
