Can I use dirty sand for patio base?

[kingandy2nd]

Hi guys,

In the process of extending my patio by about 6m2. Our neighbourhood is built on sand and it can clearly be seen when you dig down.

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Now I've got 400kg of sand coming tomorrow to make the bed onto which to lay the slabs. Now I'm digging out loads of sand for the sub base so I was just wondering if I could just remove the stones, wash and reuse the sand I'm digging out of the yard rather than paying money for new sand and for a skip to get rid of the garden sand?

Thanks
Andy

 

[noseall]

We have used excavated material for blinding but it would (probably) not be suitable for mixing with cement unless it was washed.

 

[kingandy2nd]

Thanks Noseall.

I guess I will have to skip the sand as other than running the hose on it I've got no way of cleaning it.