Posted: Wed May 30, 2007 12:05 pm
I am having my garden landscaped at the moment. The garden previously had a large rectangular manhole and about 1m away from that was a small plastic inspection chamber (about 20cm across - an OsmaDrain).
The area they are both in is to be patioed over and the gardener will be using a recessed tray for the large manhole cover. However he says he is unable to raise the smaller inspection chamber and instead he has suggested just laying a single paving slab loosely over it. The slab would be only partially concreted in and so could easily be chipped out if access was required.
Is this a satisfactory solution? Are we breaking any laws by doing this?
The area they are both in is to be patioed over and the gardener will be using a recessed tray for the large manhole cover. However he says he is unable to raise the smaller inspection chamber and instead he has suggested just laying a single paving slab loosely over it. The slab would be only partially concreted in and so could easily be chipped out if access was required.
Is this a satisfactory solution? Are we breaking any laws by doing this?