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Get to Know Water Infiltration Wells: Benefits, Advantages, Manufacture, and How to Care for Them
In urban areas, the existence of infiltration wells is one of the right tactics to accelerate the absorption of rainwater into the ground. The structure of infiltration wells can be understood as engineering water protection techniques in the form of buildings made with the function of collecting rainwater that falls, to apply it to the ground in a short time.
This construction has strategic benefits and functions, so it must be made in the right way and method so that both can be obtained.
Furthermore, let's take a look at what are the important points related to infiltration wells, starting from the benefits and advantages, manufacturing guidelines, and how to care and maintain them.
Benefits and Advantages of Infiltration Wells
Making the ideal infiltration well will provide benefits and advantages for your home. There are at least 7 benefits that can be obtained, including the following.
1. Reduce the Volume of Waterlogging when it rains
The main benefit that can be obtained is a reduction in the volume of stagnant water when it rains heavily. Soil that already has infiltration wells can easily absorb existing water, so that stagnation does not appear and the soil is avoided from erosion or unstable structures.
2. Helps Prevent Flooding
By reducing the overflow of water flowing to the drains, the risk of flooding can also be reduced. Infiltration wells play a big role in this, so basically the existence of such structures also reduces the risk of houses being affected by prolonged heavy rains.
3. Increase Groundwater Reserves
Due to optimal water absorption, infiltration wells can increase groundwater reserves significantly. With the right construction, this well can hold the groundwater needed for daily needs.
4. Hold Clean Water
A well-made infiltration well can also hold clean water. No wonder one of the important points is to keep a distance from areas such as septic tanks or sewage lines.
5. Become a Source of Water for Irrigation
For areas close to plantations or rice fields, wells like this can also help provide water for irrigation. Reserve water sources during the dry season can be used to provide the necessary water supply.
6. Maintained Soil Moisture
The existence of infiltration wells plays a big role in maintaining the moisture of the surrounding soil. Due to the adequacy of water availability, the preservation of plants and the environment will also be maintained.
7. Preventing the Risk of Land Decline
The risk of land subsidence is always high, especially in soils with poor structures. The groundwater content, which is the key to the structure, remains solid. So directly the existence of this structure can help keep it solid and reduce the risk of land subsidence.
Practically, the risk of landslides or landslides can also be reduced.
8. Prevent Seawater Intrusion
Seawater intrusion is when seawater enters the pores of rocks and contaminates groundwater. This can happen because more rainwater flows and empties into the sea, thus pressuring seawater into the soil on land.
Guide to Making the Ideal Infiltration Well
One of the legal rules related to the creation of ideal infiltration wells is in Jakarta Governor Regulation No. 109 of 2021 and Regional Regulation Number 18 of 2018.
Both require certain buildings to make infiltration wells, with a safe distance from the septic tank of at least 5 meters and a foundation of at least 1 meter.
There is also an explanation of the Technical Standards in SNI 8456:2017, which contains several important points. For example, the general depth is between 1.5 meters to 10 meters, the distance is at least 1 meter from the foundation of the house and 5 meters from the septic tank, the distance of the infiltration well is at least 10 meters from the drilled well to prevent contamination, and it is suitable for use for groundwater levels of more than 2 meters. If it is less than 2 meters, it is recommended to use an infiltration trench.
For self-licensing, the construction of infiltration wells is often part of the requirements for environmental approval or groundwater use permits regulated in the Ministry of Energy and Mineral Resources Number 14 of 2024.
The general guidelines for making infiltration wells are as follows.
1. Determining the Location of the Well
The first step is to determine the location of the well. With the regulatory guidelines above, determining the location of infiltration wells can be done quite easily.
Look for the lowest plain in the yard, so that rainwater can drain well.
2. Calculate Rainfall
Calculate the amount of rainwater that will enter the well. Rainfall data can be easily obtained from the official website of the Meteorology and Geophysics Agency or related institutions.
The ideal size is 1 to 2 meters in diameter, and 2 to 5 meters for its depth.
3. Do an Excavation
The third step is to dig a hole for the infiltration well. Excavation can be done manually or heavy machine.
Pay close attention to the hole wall to keep it stable and not collapse. Use temporary support to maintain safety during this excavation process.
4. Create a Well Wall
The well wall needs to be strengthened so that it does not collapse while still allowing water to enter. The use of perforated brick materials, porous concrete rings, and gravel layers can be alternatives.
The use of geotextile fabrics can also be done to prevent soil from entering wells.
5. Fill the Well Hole
After the walls are strengthened, the well needs to be filled with materials that support water absorption. The material in question is such as gravel and sand.
Pipes can be installed inside the well to help the distribution of incoming water.
6. Make Sure the Water Flows Well
Make sure the water flow path is correct. Water can be drained through pipes or drainage channels from rooftops or other areas, and directed to the infiltration well.
To prevent clogging garbage, install a filter at the inlet.
7. Safely Close the Well
After the previous six steps are completed, close the top of the well to make it safer. The lid can use perforated concrete slabs or porous paving blocks or synthetic grass.
How to Care and Maintenance
Infiltration well maintenance focuses on cleaning garbage and sludge regularly (every 6-12 months) so that the water flow is not blocked. The main steps include cleaning the control tank, replacing the palm oil/coral rock layer if dirty, and removing mud deposits so that the groundwater absorption function remains maximum.
A breakdown of the technical maintenance and maintenance of infiltration wells can be seen below.
- Cleaning of the control body and inlet. Organic and inorganic waste that accumulates is cleaned regularly, especially after heavy rains so that water can flow smoothly.
- Dredging of mud and sediment. This is done once every 1 to 2 years, or when it is seen that the storage capacity is significantly reduced.
- Replacement or cleaning of palm or coral. Replacing the layer at the bottom of this well can be done once every 1 year or when it is covered with thick mud so that water can continue to seep in.
- Checking the structure of the infiltration well. Checks are carried out on the walls of the well, PVC pipes, masonry, to ensure that no parts collapse or are damaged. Also check the well cover to keep it safe.
- For biopore infiltration wells, refill the biopore hole with organic waste periodically and remove the finished compost. This is done about once every 3 months.
The existence of an ideal infiltration well in the house area will obviously provide many benefits. Primarily, it helps protect homes from the risk of flooding and severe damage from other natural triggers.
With proper construction procedures and maintenance, the land and buildings you own will become more resistant to the threat of disasters.
Protection can clearly be maximized by having reliable Home Insurance, such as SmartHome Insurance from AXA Insurance Indonesia. This insurance can provide optimal benefits for risks that threaten your home, so you can feel safer and more comfortable while living in the residence.
The combination of the ideal infiltration well with SmartHome Insurance provides optimal protection for your home and residence. Wake up according to the given procedures, and make sure everyone who lives inside the house stays safe and protected from various risks!
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