Joined: July 2004
||Posted: 27 June 2019,08:54
Yes - that's fine!
In practice, I'd probably fold over the geo-textile at the level of the base of the sub-base, place sub-base agg all over, compact, and then dig out a channel in the sub-base to extend the interceptor upwards, unfold the geotextile, top-up the interceptor, and then dress it.
Which raises the question: what will you use at the top of the interceptor?
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