Table of contents
- Possible causes
- Insufficient depth
- Leaking lines
- Lack of ventilation
- Incorrect settings
- problems with the filter
- Defective valves
The domestic waterworks can be an alternative or an addition to the regular water supply. If it does not draw water, energy is consumed but the function is no longer fulfilled.
Possible causes
There are many potential reasons why the domestic waterworks no longer draws water. They also depend on the type of domestic waterworks. These are differentiated in:
- self-priming pumps
- non-self-priming domestic waterworks
- self-venting devices
- non-self-priming pumps
Knowing the type of model in question helps to find the cause more quickly and to discover which problems are responsible.
Insufficient depth
Especially with self-priming domestic waterworks or pumps, an insufficient depth can quickly ensure that the corresponding amount of water can no longer be sucked in. In domestic waterworks that are not self-priming, just a few air bubbles are enough to negatively affect the function or even lead to a complete standstill. Therefore, you should pay attention to the required depth in any case, because the delivery line must reach far enough into the water.
This can easily be ensured with a new installation. It should be noted that the pump output is designed for the depth.
Leaking lines
A leaking line or leaking valves can mean that sufficient pressure can no longer be built up. In addition, air can be sucked in. The delivery lines as well as valves and seals must therefore be checked at every domestic waterworks when it no longer draws water.
In some cases it is then sufficient to reinsert seals correctly, seal a leak or tighten a connection again. In other cases, the affected components must be replaced. This can be the case, for example, if the material has become porous or even has cracks.
Tip:
Regular system checks help to identify such damage at an early stage. This keeps the problem small and often easier to fix. Expenditure for work and costs can be saved or kept low as a result.
Lack of ventilation
If it is a model without a self-venting function, the air must be removed manually. This action should be done manually. It is important that venting takes place regularly. It is ideal to do it before each new start-up if it is a pump in the garden.
In addition, the manufacturer's instructions must be followed to operate the vent screw and, if necessary, to vent the lines. However, the problem can also arise in domestic waterworks with automatic venting if there is a fault or damage.
Incorrect settings
If the pressure valve and pressure monitor are not set to match the delivery depth, the domestic waterworks can run continuously and deliver too little water. It is also possible that no more water is attracted.
This problem can occur with any type of domestic waterworks. On the one hand, it is therefore important to select a model with the appropriate delivery capacity. On the other hand, the setting must be made correctly. The information provided by the manufacturer must be observed.
problems with the filter
Various problems can occur in the area of the filter, which ensure that the domestic waterworks no longer draws water. These are:
- soiling to the point of clogging
- holes or leaks
- loose connections
If the water contains foreign substances and coarse dirt, these can clog and clog the filter. When servicing the pump or when the domestic waterworks draws less or no water, the filter should also be checked.
Tip:
Does it have to be cleaned or if other problems are found and if these are discovered early, they can usually be remedied quickly and easily.
Defective valves
In domestic water systems that are not self-priming, there are one or more so-called non-return valves. These prevent the water from flowing back and out of the line. Possible reasons for the lack of drawing of water can therefore also be found in the area of the valves.
- dirt
- rust or broken
- lack of closure, for example due to porous seals
If the filter is leaking, dirt can get into the line and cause clogs or prevent the valves from closing properly. In both cases no more water can be attracted. The same applies if the valves are defective.
In order to avoid this or if no errors can be found elsewhere, the valves should therefore also be checked. Flushing the line can already help to eliminate the cause of the lack of tightening. An exchange is necessary if there are defects.
IMPORTANT:
However, this is not always easy for laypeople to do. If necessary, the domestic waterworks must therefore be repaired by specialists in order to replace defective valves.
Home editorial office
Learn more about water
Drain in the shower stinks: these 7 home remedies will help
If the drain in the shower stinks, it can be unpleasant not only during use. Bad smells from the pipes can spread throughout the bathroom. This guide shows how the problem can be solved with home remedies.
Water consumption when showering in liters per minute
Anyone who knows how much water is consumed when showering in liters can use this to reduce costs in a targeted manner. Especially with regard to rising energy prices and a more conscious use of resources, there is often an undreamt-of savings potential.
Install check valve vertically or horizontally?
A non-return valve prevents the flow of liquids or gases in the wrong direction due to its operating principle. This makes it an important component, for example, in garden pond pumps or on the heating system. But should it be installed vertically or horizontally? We clarify.
Domestic waterworks: how to increase the pressure
With a domestic waterworks it may be necessary, depending on the depth, to increase the pressure. But how can the setting be made and when is it necessary to make an adjustment? All important information can be found here.
Domestic waterworks: set the pressure correctly
Adjusting the pressure correctly in a domestic waterworks is very easy with the appropriate knowledge. Our guide shows how the measure should be carried out and what to look out for.
Domestic waterworks does not switch off: what to do?
If the domestic waterworks runs continuously and does not switch off, there can be several reasons for this. At the same time, the permanent running of the domestic waterworks poses a significant problem. Here we show what can be done about it.
