Saniflo lid seals mostly fit into the lid first.
Old seals can shrink when taken off wash them in hot water and stretch them back on to the lid.
Apply washing up liquid sparingly on the outer edge of the lid seal and push the lid back in place first one side then the other untill the lid clicks back in place.
If too much washing up liquid is used then it runs down the case and can look like a leak or it will foam up inside the machine and make it run all the time so use it sparingly please.
Muncher
November 2014