Backfill evenly around the drywell with soil or gravel, raising the level in stages to avoid tipping the unit. The drywell may be surrounded with stone if desired to increase leaching capacity, but do not fill the inside of drywell with stone. It is typical to use 1-1/2 inch diameter crushed gravel for a leaching pit, but anything down to about 3/4 inch will work. Do not use small “pea” gravel and avoid smooth river rock whenever possible.
Bury the drywell at least well all the way up to finish grade. Exposed gravel will allow the leaching pit to get rid of water through evaporation in additional to percolation. These drawings do not highlight like the installation diagrams at top of page, but always vent your leach pit for best performance and soil health.
This is a great project for those of you just outside the city limits or for your vacation homes. It can be adaptable as well for those homes with in the city limits how have less yard or lawn and gardens. Other projects for home improvement and building on a sustainable life style, while reducing your share of the carbon footprint AND saving money in a big way is to explore the possibility of a renewable energy system. Learning to build your own solar panels to replace your utility with the use of home solar power is easier than you think and fun too! it doesn’t take much time at all to build one solar panel and build your home solar systems over time as you can afford it. Adding a wind power generator only caps off a great project and give you a complete all season system. Click this link to find out more on wind power generators and home solar power systems.