Water running under conservatory

[mcfc4heatons]

Looking for some advise please, had decking removed at rear of house to reveal hole at bottom of conservatory wall. Water is running under the conservatory when it rains.

The conservatory does have a manhole/grid underneath it which has access/capped. Should I be worried about water running down there under the conservatory, should I block the hole off, will the water readily find its way to the drains anyway or could it cause damage?

 

[mattylad]

Yes.

 

[wwwebber]

What has this got to do with Regs & PP ?

 

[Ian H]

Is it rain water running under?

Best bet would be to relay the slabs so the water goes the other way.