I have had a problem with water from my down pipe coming back into the house via the cellar ( house 160 years old and full of tiny holes and crevices). I have cleaned out the drain as far as I can physically can but it continues to fill back up with water despite no apparent blockage. Help?!
it's hard to say - it's more likely if you had off grid sewerage as they can get over logged with rain and high water tables - especially the self emptying kind ?!? might be worth trying to get someone over to have a look ?!