DIY Doctor UK DIY Forums

Hi,

Im planning to build an extension on the side of my house running round the back. the only problem is the drainage for my house and the next 3 houses runs down the middle of where i want the extension and in the middle of where the back will be. there is a manhole on the corner (i think for rodding) how will i get round this as i dont want a manhole cover inside my extension, i am going to have to put drainage in for the extension which will have to be extended further towards the back of the garden i think

Thanks

to save any problems under the extension you can renew it with a plastic pipe and you can install a new manhole just outside the building perimiter.
If its not possible to do this and you have to install a manhole inside the extension it will be an airtight screwdown cover.Have a word with the architect when he draws the plans he will advise you better.