2x2 slabs

[neilyb01]

laid slabs earlier this year for base of shed. laid sand and then placed slabs on it then shed all was well. Then this week a spring which has never flowed before erupted on a slope above the shed and has washed a lot of the sand from underneath the slabs some have moved and some have stayed the shed itself appears fine and stable. Any tips on how to fix this b4 it happens again without having to lift shed off as its huge?

[elwood]

Hi

Divert the spring, hand dig a small trench and fill with clean stone.

The spring will follow the course you have made.

Bye