What gun for foam to choose. An interesting feature on one model

This model has interested me a trifle, which, in my opinion, for those who do not flush the gun and keep it with the balloon.

ordinary gun

I also I keep a gun with balloonAnd it then works fine after a year's break after use. But such storage have minus oneSometimes the gun nozzle is clogged with dried foam and it has to be cleaned.

The tool then again perform its functions in a normal mode. But today I came across a model with a significant improvement, which is designed to solve this problem.

Model with improvement

The needle rod which controls the supply of foam, this tool is machined, so that sticks out from the nozzle, it does not allow her to stay there and wither. Because of such useful refinement unnecessary cleaning nozzle after prolonged storage.

Next time if I need to buy a gun, then choose exactly this useful feature.

What do you think about this?

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What will happen to gun foam, if you leave it with a balloon for 1 year