drainage
Posted: Wed Apr 28, 2010 4:17 pm
My back yard is concrete slab. when it rains shallow pools of water are left behind. i've noticed in town both concrete slabs and large areas of paving often have a groove or grooves(approx 7mm)cut in them. Is this something to overcome the pooling?
Any sugestions as to what the grooves are for and how can I stop the pooling
thanks
Any sugestions as to what the grooves are for and how can I stop the pooling
thanks