We bought a house three years ago in Scotland where the home owner commissions a home report. The report mentions the house is on mains sewage. Subsequently we discovered that there is a holding tank in garden which pumps the sewage into the mains. It's cost us an awful lot to maintain as both pumps have failed at various times. Should the home report have made mention of this tank? Not that we might have any recourse I'm guessing, but I'm just interested to know what should have been covered. There's a man hole in garden where it is. Thanks