Haizelong completely opened the saliva bag.
Suction nozzle with dust cover
Generally speaking, when hiking, even if there is no water supply halfway, a water bag filled with 2 3L water is enough for a day's hiking. You can refer to the following factors:
1, capacity: However, under the extreme conditions of sweltering, sweating and rapid water loss, we once drank 6L of water a day, but it was far from enough. In addition, we also need water to cook, make soup and make tea after camping. When the camping site is a little far from the water source, in order to avoid wasting physical strength, time or increasing insecurity, our consideration is to buy two water bags with a capacity of 3L.
After all, the water bag is relatively large. When you don't need too much water, you can pack less water to reduce the travel burden, and you can pack as much water as possible when you need it. However, when buying water bags, we must pay attention to the use characteristics of water bags, that is, they are mainly used in action, not after stationing. Because after arriving at the station, looking for water can replenish the water bag. It's not realistic to do both.
2. Price:
There is no doubt that the water bag with the same capacity, of course, the higher the cost performance, the better. But this is not absolute. After all, outdoor equipment needs reliable performance most. If it is too cheap or not, but you buy an unreliable equipment, the water bag will burst and seep into the mountaineering bag, so that the sleeping bag and clothes are soaked, which is a great tragedy. So the practicality of design and function is the key. Don't listen to some flashy scientific content and unprovable patent performance.
In fact, the price of water bag has a great relationship with the industrial design level, innovation, function, material and patent of water bag.
3. Materials used:
At present, most brands of water bags are made of plastic. There are many kinds of plastics, some are cold-resistant and some are heat-resistant. Of course, the best material is TPU, and some standard TPU water bags can hold 100 degree boiling water. Of course, it is recommended not to install it at too high a temperature to avoid damaging other accessories. After all, not all parts such as suction nozzles and water pipes are made of TPU. Followed by eppe/peva material, 70 degrees water is no problem, relatively cold-resistant; Eva material has a slight odor; Pvc material is the weakest, not resistant to high temperature and cold, and has an odor. Remember, all materials are graded, whether TPU or other, food grade or non-food grade. If it is industrial grade, don't use it in drinking water containers. This needs attention. Some people use some industrial containers to hold drinking water, which is a potential safety hazard.
Therefore, when choosing a water bag, try to choose a water bag made of food-grade peva/eppe/tpu.
4. Reliability (robustness):
People must step on it so as not to burst, otherwise the water bag filled with water will jump up and down with the human body in the bag, and the superposition pressure of multiple bags placed in the car may cause the water bag to burst suddenly.
In addition, water bags are often unprotected everywhere after water is lifted in the wild camp. If they are not firm, they will be easily punctured on sharp stumps or sharp stones.
So firmness, toughness and scratch resistance are all necessary properties. Otherwise, no deal.
5, self-respect:
Of course, the lighter the better. This factor can be ignored. After all, the water bag is very light. If it is a water bag with a handle, the handle is a little heavy.
6. Convenience: fully open and enlarged opening design.
Full-open saliva bag
It is convenient to fill water, open and close, lift, install, hang and put it. Therefore, outdoor equipment should be durable and tossing-resistant, not too delicate and difficult to serve. It is certainly a trend to open all the saliva bags, and it is also the first choice for more and more people. After all, it can meet the above requirements, durable, convenient and easy to maintain. The large opening water bag is convenient to extend into the cleaning water bag to prevent dirt and sundries from staying and will not become a hotbed of bacteria.
7. Rationalization and humanization of design.
Suction nozzles for drinking water should also be considered. For example, the latest popular curved suction nozzle, and some even rotate the suction nozzle 360 degrees, really seriously consider the convenience and rationality of outdoor use scenes.
The drinking water faucet has also undergone many changes, from the earliest integrated plastic faucet to the faucet with switch function, and then more changes, such as dust cover, elbow, rotatable and so on.