Since with the heat pumps we need to remove extra heat in the summer heating the sewage may help to disolve some of the fat blobs. But it is a risque idea, sin

Since with the heat pumps we need to remove extra heat in the summer heating the sewage may help to disolve some of the fat blobs. But it is a risque idea, since we are likely to open Pandora's box of higher methane production, pathogens and smell.