I need to access a drainage system to unblock blockage. The manhole cover i have is rectangular with two circular (approx 10cm diameter) indentations either side but no "key holes" that i can see as such.
Can anyone offer any advice on how best to raise such a manhole?
The type is similar to as on this guide
Google "ultimatehandyman.co.uk/plumbing_DRAIN_UNBLOCKING.htm"