Micro Hydroelectric Generator 500 Watts High Power With Monitoring TV Lighting Computer Outdoor ,Easy to Use

There is no need to repair the pressure tank. The generator has a sealing ring. , The impeller is relatively tight. The main function of the seal ring is to protect the bearing and the generator. The bearing of the generator without the seal ring is more prone to damage. The bearing is not and the generator coil will burn when water enters. The seal ring is installed. The disadvantage is that the friction is large.