trying to make a better squirt gun?

Question

well the time has come for assassins. the fun game where kids run around trying to get each other out. of course supper soakers and other such squirt guns are okay, im looking for something a little more reliable. seeing as every squirt gun I have ever had has fallen apart due to cheap materials and bad designs. I have a decent concept but am having trouble finding the right materials. I figure I won't be able to find a water pump that is afordable but powerfull enough to spray perhaps a 1/4 inch stream a good distance. My idea was to partialy fill a pressure tank with water, say 3/4 of the way. then use an air compressor to bring the pressure up to around 120 PSI. Then using a solinoid valve to relese the water via an opening at or near the bottom of the tank. As the water drains, a pressure switch would turn the compressor back on.The water would flow up a high pressure hose and out of a small section of threaded pipe. Obviously I have taken all safety issues into consideration.

obviously it would have some sort of pressure relief valve and be connected to a fuse in case of a short. Now, is it pocible to use one of those well saver pressure tanks? the water could be filled from the bottom and the air could be delivered through the line at the top. But are the tanks made to be used in such a maner. obviously this may have to be mounted in a car (please leave such practicalities out of the question, this is primarily for concept) they also have 10 and 5 gallon air tanks online. however, they are intended for air so will this mean that they are made with steel and not coated on the inside, resulting in a serious rust problem? also, would I then have a feasable maner in which to pump air in and have the water still come out? realy im just looking for conceptual help and any other suggestions on a better squirt gun will be greatly appriciated.

Answer 1

Yes, I think your concept seems sound.
Employing the captive air type tank is a good way to make the unit position independent.
There are a few tanks manufactured from composite fiberglass that would be lighter and less expensive than metal. They are rated for 100 psi though. Considering city water is generally not over 60 psi you should get good range. Keep the piping large, say ½" through the solenoid valve and feed until you get to the nozzle. This will create min restriction and allow max flow. That's the way fire trucks do it.
For the pneumatic part you can probably use a 12v portable compressor, adding a pressure switch as you said. The valve on a pressure tank is Schrader type, like a tire. You can unscrew the core so it wont interfere with the air flow.

Warning!
Just on the odd chance your not a youngster having fun, but a terrorist thinking about building a home-made flame-thrower.
The gasoline will eat the bladder in a captive air tank. The dry air the compressor generates will probably create enough static charge for a spark. Therefore the device will explode if filled with gasoline.

But, I know you or anyone who reads this would never do anything as irresponsible or suicidal as that.
Good luck.

Answer 2

Cat would be cats. have you ever no longer found out that which incorporate your "previous cats"? Are you this variety of administration freak animal proprietor? you want a robotic? why do no longer you get rid of the cat? My advice to you: provide away your animals to somebody who rather loves animals as they are or to place the cat for adoption with the aid of an animal rescue society. yet a toy cat, one among those that breath with batteries. they do no longer wreck something, they do no longer pee, and you do no longer even could feed them. and you'd understand they won't in any respect PLAY which incorporate your effective RUG