One, is there any reason why some coolant bottles are shaped in this way?
Two, if this coolant bottle was placed on its side such as in the image below for example would coolant still circulate with the return pipe submerged under water? In other words is there any reason why the coolant return is placed at the top of the bottle.
Don't panic I’m not getting any wild ideas of placing my expansion bottle on its side it is for a different project I am building to cool a series of GPU's (not related to cars) however the cooling system will be the same to that of a car as the pump will be a centrifugal impeller and the system will be pressurised.
Interested in all input to this subject thank you all for your time.
Please excuse the poor drawing in paint but i don't have time to draw something extravigant in CAD. one last thing the cap will be above coolant level to release excess pressure.