26+ Retaining Wall With Drainage Pipe Pics. If it is a 6 (or 3), nds makes a nice 6 by 6 square grate that has back connects for 4 corrugated or 4 s&d. Retaining walls with a height greater than a few feet should also have weep holes that are regularly spaced in the vertical direction, forming a grid another method for relieving hydrostatic pressure is to install a drainage pipe behind the wall.
Most retaining walls require drainage and are built with a perforated pipe set behind the wall in a gravel base.
Drain pipe for retaining wall | mycoffeepot.org. Position drainage pipe behind wall and run output end to suitable location where it can be accessed. Cover pipe with gravel and then cover this with filter fabric. Retaining wall drainage retaining wall blocks building a retaining wall garden retaining wall stone retaining wall landscaping retaining walls often are used to manage steep slopes in a landscape.
