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Acorn that is very true. PSU, your concept would work well for SRW's but not for pavers. They cover such a large area and would not be able to control the water, nor clean the water as it filters through. This concept is gaining popularity fast in the larger cities and will become more so in the future. If a Permeable paver application is done right it should control up to 4" of rain per hour. The installation does not appear to be that difficult. Once you dig out the area, it is suggested to NOT compact the soil. If you do so, it may plug up the open pores in the soil. (Including clay) From that point on, it is suggested to compact the clear stone as you would in a normal application. This concept works well, it is only a matter of time before it is specified in all our areas.
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