Why is the toilet flush not smooth not long after pumping water and fertilizer?

The owners of the houses generally rarely care about and maintain their own septic tanks. Therefore, when the septic tanks are angry and awkward, people often suffer a lot. Smelly wait! For the septic tank that usually pays silently and works hard, we should be more tolerant of these awkwardness, and we must quickly help it take care of and clear it.

However, if you haven’t pumped water and fertilizer for several years since you moved in, you don’t think to pump water and fertilizer until the toilet on the first floor is not flushing smoothly. At this time, you often encounter that you just pumped water and fertilizer three days ago. Especially if your septic tank has not pumped water fertilizer for more than ten years, this problem will be more likely to occur, which will cause you to spend money pumping water fertilizer, pumping fertilizer, pumping fertilizer! Entering a vicious cycle of smoking and protection, and blocking without smoking. This is actually because of the "small manhole in the septic tank" and even the small neck, which caused the problems caused by the unclean pumping of water and fertilizer!

As the name implies, the "ditch cover" is a hole that allows water to enter and exit freely, so the septic tank is made as a standard manhole with a diameter of 50 cm before leaving the factory, which is convenient for future maintenance or pumping of water and fertilizer, as shown in the following figure:

The standard manhole with a diameter of 50 cm can allow the water and fertilizer truck to clean the septic tank. Whether it is the inlet or the overflow (ie the drainage pipe), the accumulated water and fertilizer can be removed, and the water can be seen directly, as shown in the figure below.

However, when the septic tank is going to be buried under the house, the builder (or the homeowner) will most likely want to reduce the 50 cm diameter man hole to about 10 cm in diameter because the man hole is ugly, unsightly, smelly, etc. Small manhole, in order to meet this demand, most septic tank manufacturers will open a small manhole in the middle of the adult manhole for customers to choose according to their personal needs, as shown in the figure below.

Customers who want to use small manholes can cover the adult manhole with cement and tiles when installing the septic tank, and finally only the small manhole is exposed, as shown in the figure below.

When the toilet on the first floor of Toutiancuo is not flushing smoothly, it is probably because the first tank of the septic tank is full, and the stool has not only accumulated near the inlet of the septic tank, but also gradually blocked the toilet manure pipe!

After the manufacturer has finished pumping the water and fertilizer, some space will be made near the manhole. "Part" of the water and fertilizer originally accumulated near the inlet of the septic tank will float to the manhole space. At this time, the outlet of the manure pipe will be relatively clear, so the toilet Flushing will temporarily become smoother.

However, because the water and fertilizer truck can only remove the water and fertilizer near the manhole, it cannot completely remove the water and fertilizer accumulated in the "inlet" and "overflow" of the septic tank, as shown in the figure below, and the water and fertilizer accumulated in the dead corner will greatly Shrinking septic tank capacity makes it easy to "re" full.

Especially near the inlet of the septic tank, there is a lot of water and fertilizer that cannot be pumped, so it is easy to block the drainage pipe due to the water and fertilizer filling up again. Regularly pumping water and fertilizer can alleviate this problem.

In addition, some septic tanks have a "small neck" design due to on-site construction problems. The small neck can extend the manhole of the septic tank to the first floor. When the foundation of the house is deep, this is a necessary design. However, the small neck will greatly increase the difficulty of pumping fertilizer by the water and fertilizer truck, because when the fertilizer pumping pipeline of the water and fertilizer truck extends along the small neck into the septic tank, the space that it can move will be limited to the range of the small manhole, so the water and fertilizer will be more difficult to pump. Clean, dead corner accumulation problem will be more serious.

▼Installation of FRP septic tank (sewage treatment setting)

▼The septic tank is some distance away from the floor of the first floor. Use the small neck to extend the manhole of the septic tank so that it is flush with the floor of the first floor.

▼ Backfill the septic tank, cover the adult manhole with cement, and finally expose only the small neck manhole, which will be used for pumping water and fertilizer in the future.

Shrinking the originally large manhole in the septic tank to about the size of a fist can make the manhole less obvious and reduce the odor, but this will make the septic tank accumulate water and fertilizer for a long time and cannot be pumped cleanly!

In particular, the septic tank has not pumped water and fertilizer for more than ten years, and there will be repeated problems such as the flushing of the toilet not long after the water and fertilizer is pumped, the manhole of the septic tank often leaking water, and the septic tank will discharge feces when the water flows out of the septic tank. Because of the "little manhole" (even a small neck) in the septic tank, the problems caused by the unclean water and fertilizer!

The big battle to rescue the small ditch hole septic tank:

(1) The traditional practice can be divided into two types

Method (1), restore the small manhole to a large manhole: if the septic tank was built after the 1988 (inclusive) of the Republic of China, the septic tank will mainly use FRP (glass fiber) sewage treatment facilities. When the FRP sewage tank leaves the factory All of them will make adult manholes with a diameter of 50 cm, so as long as the existing small manhole is centered, after removing the surrounding soil, cement or tiles and other coverings, the original adult manhole can be seen again.

However, if the septic tank was built before 1988, the septic tank may not have an adult hole design. At this time, it is necessary to invite professional manufacturers to come to the house for evaluation. After the survey, if it is determined that there is no adult hole reserved, then Manufacturers are requested to take the existing small manhole as the center and dig the small manhole into an adult manhole, so that the fertilizer truck can pump fertilizer without dead ends.

Method (2), open a few more small manholes: dig a few more small manholes near the existing manholes, as shown in the figure below, the more small manholes are excavated, the more favorable it is to pump water and fertilizer, and the more water and fertilizer can be pumped out.

When using method (1) to dig a small manhole into a large manhole, or method (2) when opening a new manhole, please pay special attention. These two methods are only applicable to septic tanks made of "cement", not FRP septic tanks. pool. Because the floor cement is often "shattered" with a machine when starting a manhole, and then the manhole is cut (as shown in the figure below), FRP is easily damaged and broken during the "shattering" process.

The advantage of the traditional method is that the problem can be solved immediately, but because most of the manholes in the septic tank of the Toutiancuo are located in the kitchen, excavating a septic tank in the kitchen has the advantages of high construction cost, more manholes to be maintained, and the smell is overwhelming. In addition to the shortcomings, the small residents such as cockroaches, mosquitoes, moths and gnats who have lived a comfortable life in the septic tank for a long time will be frightened when the manhole is suddenly dug out, and they will be chaotic in the kitchen. Flying and scurrying lead to hygiene and panic problems.

(2) Bio-enzyme decomposes water and fertilizer for 24 hours

In my experience, if the villain Kongtoutiancuo has to pump water and fertilizer every three years (the standard is once a year), but recently, I have encountered a toilet flushing problem not long after pumping water and fertilizer. It is caused by the following two reasons:

(1) The water and fertilizer near the inlet of the septic tank is not clean: because the manhole of the septic tank is too small, the water and fertilizer truck cannot pump the dead corner of the septic tank.

(2) Urine scale or feces accumulate at the end of the toilet manure pipe: After years, the urine scale will be deposited on the end of the water pipe; in addition, if the first tank of the septic tank is once full, the stool in the tank may also be blocked back into the manure pipe.

At this time, if the toilet can still drain normally, you can use the water and fertilizer decomposition enzyme to deal with it after pumping the water and fertilizer. When the enzyme is put into the toilet, the enzyme will decompose the water and fertilizer near the inlet of the septic tank, as shown in the figure below. As long as the enzyme is used continuously, the toilet flushing problem caused by the accumulation of water and fertilizer in the inlet can be solved.

If you encounter the flushing of the toilet is still not smooth after pumping the water and fertilizer, and after using two boxes of 【Septic Clear】water and fertilizer decomposing enzymes continuously (it is recommended to use half a pack every day), the flushing of the toilet is still not significantly improved, then your septic tank It is very likely that it is not just because the water and fertilizer are not pumped cleanly or the manure pipe is stuck with urine scale, which means that the second and third pools of the septic tank are almost full....