Filter for well do it yourself

In most cases, for the construction of autonomous water supply in the country make a well. To give clean water for a long time, care should be taken to prepare the filter for the well. It will be immersed in the aquifer, so its quality must be appropriate. In this article we will explain how to make a filter for the well with your own hands.

Well filter. What is it and what are the types?

The well filter is an element located at the very bottom of the casing. In some cases, it is called a work site. It performs an important function of preventing the entry of soil particles into the structure, through which clean water flows to the surface. In addition, it provides additional protection against collapse. Making filters is carried out in several ways. In this article, we will look at the following filters with you that everyone can do:

• perforated filters,
• slotted filters
• gravel filtration facility.

Perforated filters

If we talk about perforated filters, their design is most popular. In their structure, they resemble the usual perforated pipe, which is covered with a grid. Make it yourself is easy. The most important advantage of such a filter is high efficiency. Also perforated perforated filter is applicable in a variety of rocks. It is used in most cases in the manufacture of artesian wells. The design itself has the following components:

• filter,
• over the filter area
• sump

As for the last section, large particles accumulate in the sump. It is located at the very bottom of the trunk.

You must first prepare the following building materials and tools:

1. Steel pipe, the corresponding diameter. In some cases, the use of plastic pipes is allowed, but it is important that the plastic is food grade.
2. Drills for metal. The diameter of the drill should be selected according to the size of the granules that prevail in the soil.
3. Electric drill.
4. Metal grid.

Grid selection can be performed by sieving sand from an aquifer. So, a grid that passes 50% of the sand will be the most suitable.

The very process of manufacturing the filter takes place in the following sequence:

1. Measure the length of the sump.
2. Place the pipe on a flat surface, apply the markup on it. The perforated area should be 25% of the total pipe length.
3. Next, holes are made. From the edge of the pipe one meter recedes. Between each hole should be an interval of 1-2 cm. Holes must be drilled at an angle of 30 ° -60 °. Angle direction from bottom to top.
4. Each sharp edge should be carefully cleaned. Lightly knock the product so that there are no metal shavings inside and outside.
5. In the next step, close the bottom of the pipe with a wooden plug.
6. To prevent the holes from clogging, the pipe must be wrapped in a net.

So, the perforated filter for the well is ready!

Slot filter manufacturing

If in your case a rock predominates in the well that is prone to collapse, then a slot filter will be the best option. Its main feature is that it has sufficient bandwidth. On top of the product there is no deaf zone, and the area of ​​the gap exceeds the area of ​​the hole. To be objective, this design has one drawback. The slotted filter has a slight bending strength. For this reason, in the process of its manufacture, it is necessary to create stiffening belts that will not have perforations.

You will need the following building materials and tools:

• cutting torch
• stainless wire O3 mm,
• brass mesh,
• pipe of the required diameter
• Bulgarian,
• cutting wheel.

Принцип изготовления щелевого фильтра схож с принципом изготовления перфорированного фильтра. Прорези необходимо выполнять в поясном порядке или в шахматном. При этом размер щели определяете по диаметру гранул, которые преобладают в составе породы. Как и в первом случае, трубу необходимо замотать латунной сеткой галунного плетения. Предварительно при помощи болгарки и отрезного круга изготовьте щели в трубе. Перед тем как вы наложите сетку на трубу, необходимо по спирали намотать проволоку шагом в 2 см. На расстоянии 0,5 метра проволоку рекомендуется припаять, что позволит сделать жесткую конструкцию. Самодельный щелевой filter, выполненный по данной технологии, достаточно долговечный и имеет хорошую пропускную способность.

For better structural strength, the mesh can be soldered to the wire.

Gravel filtration building

If we talk about simplicity, then this type of filter belongs to this category. At the same time, the gravel filtration construction will be no less effective than the above described filters. So, to make it, you need to take the following steps:

• Hole hole must be drilled with a larger diameter.
• Next, gravel is calibrated and selected. The gravel fraction should be the same size.
• Then the well is filled with gravel, the layer of which should be 5 cm thick.

The average size of rock fractions should be ten times smaller than gravel fractions.

Gravel filtration building готово к использованию.

Video

Making a filter for a well: