The watering timer is a one- or multi-channel shut-off design, ruler with a water pump. It opens with a certain periodicity, allowing water to be made into the irrigation system. The drip irrigation systems are able to be able to correspond to a certain number of days and even weeks without seeming for the site, without worrying for all this because of the bait seedlings
The automatic irrigation timer with one stroke solves a lot of tasks:
Provides irrigation with a given intensity and frequency;
Prevents wetting of the ground and decay of roots due to stable and unhurried feeding water;
Feeding water near the roots of garden crops, solves the problem of sunburn of leaves and minimizes the danger of their disease;
Providing local irrigation, helps solve the problem with weeds.
For convenience of maintenance, water supply timers are placed in conjunction with other equipment in plastic boxes installed near the ground. In order to be able to quickly access devices, such boxes are equipped with a removable hatch or a tight-fitting lid
The main future of such devices
In accordance with the principle of counting, the timers are divided for the device of a single act (to be a one-time operation) and repeated (if with pre-established shutter speeds it works a couple of times).
Electrical - The control unit of the device includes an electrical snap-in that determines the time of activation and the invention of the electric valve. An undeniable advantage of this type of device is a wide range of response time, who can vary within the limits, starting in 30 seconds and before one week. The order of watering can be adjusted in a manner that is consistent with the place, for no reason and remotely.
Unintentional - is a control unit equipped with a spiral spring and a mechanical valve. Works according to the principle of mechanical watches. The only cycle of the plant of the spring unit is able to secure the uninterrupted operation of the mechanism before 24 hours, opening the valve according to the given user period of operation. The watering order is manually adjusted manually.
The device pair is a multi-channel design. The involuntary irrigation timer is characterized by the simplicity of construction and the absence of lead-in electric wires in it. This greatly reduces the cost of the device. An unintended timer in comparison with an electrical analog has a more limited slowness of the given cycle
In the mechanical timer, it is sufficient to specify the cyclicity of the irrigation, choosing a gap. The electrical model is much harder: first you have to set the date and time, and then choose the best program for the culture you are growing.
Some noticed that in the plumbing systems of suburban settlements during the daytime due to a rich intake of water, the raid falls. By setting the automatic watering timer, you can set irrigation for evening worship and night time.
Depending on the modification of the device, the timers can own internal or external"normal"pipe threads, are also equipped with quick-clamp hose connectors or quick-connect connectors with irrigation system . The most expensive models have additional functions, for example, the determination of humidity, depending on the index of which the watering machine is shortened or prolonged.
Water Timer Production Options
Planning to equip for the site automatic irrigation system, for the management of cranes it is comfortable to use water timers. With the help of their water supply system it is allowed to perform completely non-volatile, avoiding the introduction of any electronics.
Structure #1 - timer with dropper-wick
Fibers fibers, , lift it up in front of a certain elevation, not allowing the water to die. If the wick is transferred from the boundary of the container, In the basis of this method lie the physical laws that make the capillary action. It appears to be lowering the tissue wick in a container with water
The flow of water can be adjusted by adjusting the thickness of the wick, the density of the twisting of the filaments and the wire loop that they undergo.
In a container with low sides, the height of which does not exceed 5-8 cm, install 5 or 10 liter plastic bottle. One of the main criteria of the system operation is the maintenance of the water level in the tank for a constant height. The best analogy of capacities is easier to find only experimentally. The determining factor in his work is the water log. Hence the height of the bottle and the abyss of wide capacity - interconnected luggage <
In a day, bottles make a small hole for the flow of water. The bottle is filled with water, for the time covered with a drain hole, and sealed with a lid. The filled bottle is placed in the trough. Seeping through the bottom of the water fairly evenly, stopping for the level, if the hole does not hide around the thickness. According to the measure of water consumption, the water flowing out of the bottle is enough to make up for the loss. Personally, it is easier to make a suitable rope out of a rope of a suitable thickness or a rope twisted from a tissue cut. It is disposed in the container, right distributing tips
The main advantage of such a timer will be something that is due to the expense of a similar level of water in a wide capacity in the event of rain replenishing loss of water from the bottle rather suspended.
The craftspeople who have already tested this structure for practice say that a five-liter bottle will have a feed rate of 1 small/2 seconds enough for 20 hours of trouble-free operation. Choosing the best value for a bottle that fulfills the function of water column and adjusting the clarity of the drop, it is permissible to have the effect of multi-day delays.
Structure #2 - the structure that controls the ball valve
In the water timer, the time for triggering is about the action of the drop. Flowing out of the tank, performing the function of ballast water reduces the credibility of the structure. At a certain moment, the weight of the container is no longer sufficient to hold the handle of the stopcock,
A barrel for the sake of water;
A ball valve;
Two plywood or iron wheels >Canisters or 5-liter plastic bottles
Construction adhesive
Sewing thread coil
For the sake of trouble-free operation, the ball valve the desire to modify, attaching a short pulley - rocker - to the handle fixed through the screw. This will allow you to quote the tap from the closed state to the open state via the angle of the handle.
The pulley is constructed from two similar plywood circles, gluing them together with planes of construction glue, or iron, by connecting them through bolts. For pulleys wind a strong rope, for the sake of reliability making about it fairly revolutions. When constructing a stick, the cord pieces are firmly fixed for its edges. To the free ends of the cord on the opposite sides of the load-weight and compensating its authority, a container with water. The credibility of the cargo is forced to exist in such a way that, near its weight, the crane comes into the good of the lever. As a cargo ballast and compensating its authority for a container with water, it is convenient to extract 5-liter plastic bottles
It is easier to regulate the authority of containers only by pouring sand into one of them and pouring water into another. The weighting agent can also be performed by an iron child or a lead small thing.
A container with water and quite a timer function. For this, in its bottom a narrow hole is made by a tiny hole, through which a small one drops and enough water penetrates. It's time to flow fairly enough through the volume of the bottle itself and the size of the hole. It can be a few hours before three or four days.
In order to bring the structure into action, the capacity for irrigation is set for a flat surface and is filled with water. Bottles, suspended from the ends of the cord to the pulley, are also filled: one with sand, the other with water. To be equivalent to the weight of the filled bottles, the cock is closed.