Pipe and Rock Method
Advantages		Disadvantages
Added gravel serves as a filter Materials used are inexpensive and readily available		System sits beside the footer in the dirt and will easily clog Slits in the pipe may not be large enough to accommodate excessive amounts of water Pipe can be crushed or can collapse Extensive amounts of concrete must be removed for installation Because of the similarities to the pre-construction method, the system may fail over time due to gravel and dirt clogging system

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