My drain is not fom the kitchen sink, it is at the front of the house and is just rain water and dirt.it takes ages to soak away.what should i use? Providing peace of mind for you and your tenants. A man looks at an exhibit entitled 'mimus' a giant industrial robot which has been reprogrammed to interact with humans during a photocall at the new design museum in south kensington, london. Boiler on the blink? think help-link! Epsom, chessington, ewell, ashtead, banstead, cheam, sutton, kingston, esher, cobham and surrounding areas please contact for more information on: . We used kil block on the bathroom waste the result was amazinggreat product great value ! Large families using lots of hot water are likely to be better off with a regular boiler, whereas smaller households using less may be better off with a combi boiler. We've got a new combi (about weeks old!) my parents have an old one and have to wait quite a while for hot water ours really is nearly instant - certainly no longer to wait than the traditional boiler it replaced we paid for a good one though.