Hi Michael,

Thanks for that detailed reply.

Hi Rodrigo,

Please share your stress results for different frequency say 100Hz, 200 Hz, 300 Hz, 400 Hz, 500 Hz....etc. I'm curious about the system, as usually my cut off for waterhammer is usually from 100Hz to 300Hz depending on the peak frequency of the unbalanced force. Based from the Michael's attachment the transient amplitude at the far right are small compared to the peak surge.

Maybe I'm also missing something in my surge/waterhammer analysis.

Thanks & Warm Regards,