Dry Well Size

Place the dry well in the hole making sure the end of the perforated pipe extends into the dry well.

Dry well size.

Backfill around the dry well with stone. The dimensions of the dry well are dependent on 1 the amount of runoff being directed to the facility 2 the soil conditions including the permeability of the soils and 3 the distance to seasonally high water table or bedrock. Spread the stone level. Here is an article detailing an example from someone who used small simple drywells to dry a soggy yard.

Line the dry well hole with landscape fabric then pour 4 to 6 inches of stone into the bottom of the hole. The drywell itself is about fifty gallons dry surge potential but this quickly disperses into the surrounding leach pit filled with 3 4 to 1 1 2 inch crushed aggregate. Many dry wells function for years without problems but sometimes sediment and debris washed along with runoff can clog the pit walls and reduce the dry well s ability to disperse water. If you have slow percolating soil you re going to get a bigger dry well so that it acts as a reservoir when you collect the water and then it could take days for it to percolate into the subsoils.

Set the plastic cover onto the dry well and tap it down. It would have been even better had he used the fabric drain sleeves. How to size a dry well. When combining a string a drywells with a french drain you can use our method of constructing simple drywells by digging down from the bottom of the french drain to a.

You have to factor in the percolation of the soil how well it percolates. Most places that would still require a permit since it s changing the surface water runoff pattern and i don t think the neighbor will like it. If the neighbor is 3 higher put a block wall along that side to dam it out. If soil permeability data is available that measured value should be used in the calculations to size the dry.

Scalable and flexible commercial solutions for office buildings banks grocery stores and more. The capacity of a drywell system is only limited by the size of the gravel filled hole you put it in leaching pit. Volume weight and other important information based on diamater and height of our products. Harris precast supplies new york city and long island with dry wells detention systems manholes catch basins trench drains and other related storm water products.

How to calculate drywell size needed.