How to pay attention to the fish pond water injection, such as the improvement of conventional methods of water injection, to increase the yield per unit area and control the occurrence of fish disease, have a significant effect.
Change the water injection during the day to fill the water at night
From 11 pm onwards to 3 to 4 on the following day, it is the best time for water injection. During this period, compared with the daytime, water injection can greatly increase the amount of dissolved oxygen in the pond, improve water quality, and control the lack of oxygen floating head.
Injecting deep water into shallow water
In rural areas, pumping water is often used to pump water into the pond. If the suction pipe is inserted deeper than 1 meter below the water source, deep water is sucked. This kind of water has high organic matter content, low dissolved oxygen, and low water temperature, which is not conducive to the growth of fish. If you can change the absorption of oxygen-rich shallow water (that is, the water pump is not more than 50 cm under the water source), the best results will be achieved.
Changed straight flush water into slant
When filling the pond with fresh water, the outlet pipe is usually placed in the middle of the pool and flushed directly into the pool. The water flows straight into the opposite side of the pool in the direction of the outlet pipe. The new water injected into the pond and the old water in the pond are all the time. Inhomogeneous mixing, aeration, and adjustment of water quality are not rapid. If it is changed to oblique flushing, the injected water flow is easy to change direction, so that the new water to be filled in and the old water in the pool can be quickly and evenly mixed, which will help improve the water injection effect.
Change the straight type into the plate type water injection
Water injection into a fish pond is usually a direct flow of water into the pond. Due to the large amount of water that is flushed in and the high flow rate, the residual bait residue, fish excrement, and base fertilizer deposited on the bottom of the pond are liable to be overturned, seriously polluting the pond water, and increasing oxygen consumption. If a large fixed plank is placed under the outlet pipe, not only the speed and the impulse of the flushing water are slowed down, but also the splashed water splashes on the plate, greatly increasing the oxygen content of the water injection.
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Specification:
|
Product Model: |
JX40 |
|
Accuracy: |
±1.5mm (0.06 inch) |
|
Measuring Unit: |
metre/inch/feet |
|
Measuring Range: |
0.03~40m (0.01 to 131 ft) |
|
Measuring Time: |
0.1~4 seconds |
|
Laser Class: |
Class II |
|
Laser Type: |
635nm, <1mW |
|
Waterproof & Dustproof : |
IP54 |
|
Auto Laser Off: |
60 seconds |
|
Automatic Power-off: |
480 seconds(8 minutes) |
|
Lighting: |
white LED |
|
Datum Option: |
Can choose Front edge or end piece edge as datum |
|
Battery Status: |
Y |
|
Signal Strength Display: |
Y |
|
LCD display: |
2 inch large screen |
|
Display illumination and multi-line display: |
Max 2 displays |
|
Data Memory: |
Y (allow 20 values) |
|
Backlight display: |
Y |
|
Continuous Measurement: |
Y |
|
Min/max Measurement: |
Y |
|
Addition/Subtraction(Distance/Area/Volume): |
Y |
|
Area/Volume/Pythagoras Measurement: |
Y |
|
Battery Type: |
AAA alkaline battery(2*1.5v ) |
|
Weight: |
about 80g |
|
Dimensions(L*W*H): |
4*2*11.5cm |
|
Auto correction and error report technology: |
Y |
|
Operating Temperature: |
0-40 ℃(32-104 ℉ ) |
|
Storage Temperature: |
-20~60 ℃ (-4~140 ℉) |
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Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com