My Hoover DF967 has started to leak over on the right hand side.

I have taken the top off as a previous leak had been due to the spray arm
feed in the roof of the machine leaking.

Just doing a load before I up-end it - when I tilted it to look under I
couldn't see any obvious staining so, any ideas? The salt container is on
that side - currently it is empty as I am using these 5 in 1 tablets. Could
this make leaks more likely?