A West Norfolk housing development has been approved despite fears it could exacerbate problems with sewage and flooding, writes Owen Sennitt, Local Democracy reporter. Residents in Gayton, Pott Row and Grimston were hit hard this winter, with some people unable to use their toilets for prolonged periods due to sewer systems being backed up after heavy rain. It is an issue that has plagued these low-lying communities for years and it prompted a backlash against KHM Builders’ plans for 15 homes on land north of Howard’s Way, five of which will be affordable. Many believe new housing development…