Dear all
We have one overflow line of size 24”. On top elbow & flange is fitting to fitting & vertical length is 8 meters. Since in the bottom there is no elbow , fluid going to open sump from straight vertical pipe we are ignoring weight of fluid of the vertical portion of pipe. Are we right on our assumption or should have to consider some weight of fluid for friction or capillary tube concept.

Thanks in advance for advice.

Regards
Habib

Seems like you can ignore the weight of the fluid column. Unless the velocity is really high (improbable) the friction could be neglected and capilliary action in 24" would be zero. Possibly beware of pulling a vacuum above your fluid ?

Thanks MoverZ

In our case velocity is not high. Just free fall of water.
I feel confident now in my calculation.

Regards

Habib

Make sure your outlet cannot be "shut off" at some future time by Blind flanging or valve