A spokeswoman says: "there is no question there were problems
A spokeswoman says: "there is no question there were problems with corro sion in the early years and when you get a bad reputation it tends to stick but you can't say a condensing boiler is any less reliable than a conventional one these days.". A stubborn odor or clog can quickly turn any drain into a nuisance clean drains regularly to get rid of odors and buildup of organic.