Pea shingle or sharp sand between the drainage pipes

[Porthole]

Hello

Please can I get your views on whether sharp sand is ok between the drainage pipes in the ground or do I need to insist on pea shingle? The builder is constantly cutting corners so it is difficult to trust what he is saying and the latest thing is whether pea shingle should be used instead of sharp sand. I think it should be pea shingle but he insists on sharp sand being the same.

 

Any comments gratefully received.

 

Thank you

[tonyshouse]

Pea single for me 

[Russell griffiths]

If he’s constantly cutting corners then this is you excuse to let him go. 
pea shingle for me. 

[TonyT]

Pea shingle

[Adsibob]

Pea shingle if you are talking about a French drain.