Originally Posted by James @ M Developments.

I don't like having fittings or hoses fitted below oil level, especially as low as the sump bung, purely because if a hose or clip fails it will empty the sump. You could easily drive over something or visit a gravel trap and foul a hose fitted onto the sump bung...

I would much rather have all the hoses and joins above oil level with a solid pipe going down under oil level in the sump. Far safer