New Patio and manhole cover

[Gengis]

Hi
I am laying a patio about 3.5 x 3.5 metres. I have dug up the concrete and attach photos - I have discovered what appears to be a redundant manhole cover as it situated an old flower bed. The plan is to lay 100mm MOT 1 base, 40 mm mortar and then the slabs.

I was going to lay over the manhole cover but think a tray may be the best / safest option and to ensure the patio level is the tray level.i will also have a slight gradient from the house.

This is the first time i have laid a patio - does this sound ok or am I missing anything. i was thinking of using blue circle slablayer - is that easier than using mortar?

 

[JohnD]

What makes you think it is redundant?

Can you see the DPC?

Are there damp patches on the wall, and are they near the drains and downpipes?

 

[Gengis]

there is another manhole cover in the garden and the previous occupier planted over this cover. do you think it best to put a tray over it just in case as this will allow access if needed and and will look ok? thanks

 

[HERTS P&D]

Never cover up manholes!

Andy

 

[JohnD]

When you have found the DPC you can work out what the finished level of the patio should be.

You will probably have insufficient depth for a tray.