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Soon after its introduction, the water gun took its place among the most popular summer toys of all time, and it's easy to see why: When you're a kid, or a kid at heart, what better way to cool off on a hot afternoon than waging an epic water battle against your friends and family? Thirty years ago, a typical water warrior was armed only with a small squirt pistol, which had a fairly short range and  This product an even more limited ammunition reservoir. These days, you'll find an entire arsenal of water weapons at most toy stores, complete with water machine guns, water bazookas and even water grenade launchers. In this article, we'll find out how these summertime staples produce their drenching blasts. We'll trace the path of water guns from traditional squirt pistols to motorized water Uzis and finally to the pump-action water blasters that dominate the market today.


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Handheld pistols could only shoot water a short distance. They shot a weak, narrow stream and you had to run to a spigot to refill them after every shoot-out. These guns are still terrific toys, of course, and they're a wonderful demonstration of basic plumbing principles. This pump is attached to a plastic tube that draws water from the bottom of the reservoir (in most cases, the reservoir is the entire inside of the gun). The pump forces this water down a narrow barrel and out a small hole at the gun's muzzle. The hole, or nozzle, focuses the flowing water into a concentrated stream. The only complex element in this design is the water pump, and it's about as simple as they come. The main moving element is a piston, housed inside a cylinder. Inside the cylinder is a small spring. You pull the trigger back, pushing the piston into the cylinder.



This compresses the spring, causing it to push the piston back out of the cylinder when you release the trigger. These two strokes of the piston, into the cylinder and out again, constitute the entire pump cycle. The downstroke,  [[http://www.haoru.xyz:4008/elsabrumby3752|Prime Boosts Reviews]] Boosts Official Website the piston pushing in,  [[http://www.w003.cloud:8418/hildegardeocon|Prime Boosts]] shrinks the volume of the cylinder, forcing water or air out of the pump. The upstroke, the spring pushing the piston back out, expands the cylinder volume, sucking water or air into the pump. In a water gun, you need to suck water in from the reservoir below and force it out through the barrel above. In order to get all the water moving through the barrel, the pump must only force water up -- it cannot force water back into the reservoir. In other words, the water must move through the pump in only one direction. The device that makes this possible is called a one-way valve.



The one-way valve in a basic squirt pistol consists of a tiny rubber ball that rests neatly inside a small seal. There are two one-way valves: one between the reservoir and the pump, and another between the pump and the nozzle. The amount of water in each blast is limited by the size of the pump cylinder. The size of the pump cylinder, in turn, is determined by the range of the trigger mechanism. To compress and expand more water, you have to push and pull the piston a greater distance, which means pulling the trigger farther back. The duration of the blast is also limited. Each pull on the trigger creates only a small burst. To squirt water continually, you have to keep squeezing and releasing the trigger. Throughout the history of water guns, designers have been wrestling with these problems to create a better pumping system. In the next section, we'll look at two simple water-gun designs that increase the stream's range, pressure and duration.



Then we'll check out the gun design that blew all other water weapons away. Since the pump is activated by moving the trigger back and forth, this design is fairly limited in the size, range and duration of its bursts. One easy solution to this problem is to increase the size of the pump cylinder and the trigger. This is the basic idea behind classic water bazookas like the one shown below. In this design, the trigger mechanism isn't really a trigger at all -- it's more like a syringe. Essentially, you hold the piston in one hand and the cylinder in the other. To suck water in from the reservoir, you pull the piston and [[https://www.rt.com/search?q=cylinder|cylinder]] apart. To expel the water, you push them back together. If you push the piston into the cylinder with great force, you can shoot the water a good distance. If you push it more slowly, you can expand the duration of the blast.
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