Making the right slope of sewer pipe

Value sewer slope

Construction of water communication means a competent, taking into account standards, the organization of the system components.Shutter water should drain only the desired angle.The deviation from the norm is fraught:

• weak passage of water,
• possible blockage of communications.

Let's start from the beginning.

Excessive slope of sewer pipe, according to the majority, helps to better to get rid of excess fluid.A common mistake in the future affect the drainage repairs.The steep slope of the drain contributes to the silting up of the system, not allowing water to remove impurities from the surface of the particles.A common case - the failure of congestion in siphons, which leads to the transmission of dirty air from the drainage system in the housing.Specialists in installation of sewer pipes talking about addiction pipe to rust.Steep slope drip descent is fraught with the destruction of the metal surface.

opposite situation - the lack of inclination leads to the stagnation of fluid within the system.The result - the flow of water slows down or does not pass down the drain.

tilt calculation formula

cases determine the angle of inclination of the drain water are best left to the strict calculation.There are certain calculation system.About them below.

measurement bias seems to many unusual and wrong.Self-determination of degrees will re-repair and inconvenience on the part of the sewer system.Manuals, guides and a whole literature on the construction of talk about a single standard deviation - decimals such as 0.03 and 0.08.The habit is always to focus on degrees can confuse a person, hearing similar numbers.It requires an explanation.Decimal - the height difference and the bottom of the pipe, a kind of relationship.Most often it is determined in centimeters (cm per meter 4, of 3 cm per meter).The length of the sewer Communications (her yardage) multiplied by the height, which gives the slope of the sewer pipe, will be equal to the entire height of the slope.

can be expressed in formula (7 m length and desired slope 0, 09 - calculate the difference):

H (height) = 7 * 0.09 = 0.63 m (63 cm).

filling Calculation of drain water

Laying new systems would involve the degree of filling and liquid sewage at the sink.We use the formula:

y = H / D.

Explanation:

• H - the height of the liquid level in the sewer pipe,
• D - its diameter.

be taken into account:

• y = 0 -not filled,
• y = 1 - filled,
• y = 0.5-0.6 - allowable number.

important to pay attention to the material.Plastic, glass, a different surface than metal.Their y = 0.5.Pottery and asbestos have a textured coating, y = 0.6.

The final result of the calculation will contribute to properly set the slope of sewer pipe and improve the flow of flushing fluid.

ultimate formula for computing:

K ≤ V√ y,

Explanation:

• K - permissible level of fullness of the water drain,
• V - speed,
• √ y - kV.root filling system.

slope measurement

accepted that the slope of sewer pipe depends on its diameter.List of norms SNIP writes: "50 mm diameter - 0.03 (3 centimeters to 1 meter).The main thing - correctly, without errors, calculate the slope of communications.Paul House can do much to bring down payments figures due to irregularities (better to use a custom level - a bubble, a laser).You can use the cable taut.

In computing the slope pipe outer drainage system according to the latest standards, you can use the data presented in the table:

Pipe diameter, mm	slope, m slope per m pipe	slope in special circumstances
150	0,008	0,007
200	0,007	0,005

When the sewer system calculations tilt recommend to pay attention to water supply and sanitation.Enormous role played nuance outside (on the street) or inside (in the house) sewerage system in need of repair.