Hi all   We've got problems with our sewerage and need to get something sorted promptly!  I've been reading about sewage treatment plants this last week or two so that I can choose what will best suit our needs when we replace our existing septic tank in the next month or two.  At the same time, in the back of my mind I have been thinking about composting options, but I really don't know anything about them.  The house is plumbed in, but the bathroom needs redoing completely (including