|
The liner runs under the entire system, including the Aquascape blocks. It directs all water to the storage basin area for future use. There is an overflow to an infiltration trench and also, the open aggregate supporting the pavers becomes a secondary storage area.
The liner is protected by underlayment fabric on both sides; this maybe a positve for longterm preformance of our pavers. Here's what I'm thinking, direct downward forces on open graded aggregate lack the ability to direct force laterally - in comparison to a standard paver installation (where the fines provide greater lock-up and base support characteristics to the larger aggregates). Underlayment (especially a double layer) should help maintain base support as well as protect the rubber liner.
|