"PerryOne" wrote in message
...


....

The key thing here is the quantity of oil that you pour down the
kitchen sink, over time the build up of oil in the top of the tank
will result in neat oil flowing into the drain field and spoiling it.
All oils should be collected and placed in the dustbin.
Things like frying pans and other oily/greasy kitchen things should be
wiped dry with paper towels prior to washing and the towels dropped in
the waste bin.



Why on Earth would anyone want to put fat or oil down the drain?

Mary