French Drain needed

[Jilly]

We have had a raised path made up parallel  to the side of the house and so have dug out the area alongside the (600mm) foundations (on clay). 
 

It’s left a kind of gulley: Should I back fill it with gravel (and will this be ‘strong’ enough?). 

The gulley seems to have a slight slope towards the corner of the building and the (hopefully sound) drainpipe and it’s a tad damp there. I’m not sure if that’s minor leak or water seeping in that direction. I’m wondering if I can ignore this if I fill it with gravel?

 

Also there’s an earth spike slightly exposed, should  that be in clay? 
 

The Belfast outdoor boot sink hasn’t been connected up yet. Apologies, the detritus in view is because of my CBA. Thanks @ToughButterCup!

Edited November 8 by Jilly

[joe90]

7 minutes ago, Jilly said:

will this be ‘strong’ enough?

Not sure what you mean by this, imo gravel is perfect especially around the boot sink (great idea) my build was surrounded by gravel (crushed granite) because of a high water table and worked perfectly (and looked good).

Edited November 8 by joe90

[Redbeard]

Are you expecting it to pick up much water? (Does the path fall towards it, for example?). I have incorporated a perforated pipe, with the gravel over it, (and a drain connection at the end) at the base of my EWI.

[ToughButterCup]

2 hours ago, Jilly said:

... Should I back fill it with gravel (and will this be ‘strong’ enough?). 

... I’m wondering if I can ignore this if I fill it with gravel?

... Also there’s an earth spike slightly exposed, should  that be in clay? 

 

Yes.

Yes.

Its fine where it is.

 

My CBA affects me more on Friday than any other day of ther week.

[ProDave]

What is that hopper next to the boot sink and what is that black pipe discharging into it?

[Jilly]

6 minutes ago, ProDave said:

What is that hopper next to the boot sink and what is that black pipe discharging into it?

That's the sink/washing machine/dishwasher outlet into the foul drain