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Black and decker VP450 battery garden sprayer. not holding pressure.

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Check large rubber "O" ring under pump top and outlet hose. If that is OK then probably their is an internal leak in a hose. It can be fixed if you are handy with vacuum tube or fuel hose purchase from local auto supply house. The internal hoses are 1/4" and 3/8" or metric equivalent. The pump head comes apart by unscrewing Philips head screws and separating the housing halves. Take a photo with your digital camera before working inside unit so you will remeber how it fits back together.

Posted on Jan 25, 2011


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Im pretty sure that is all it is. The pressure is by how many times you pump it up. Its just on or off. Sounds like It needs to be cleaned real good, and put soap in it befor you put it bak together. Also there is a screen if you hold the handle and turn the trigger part and unscrew it.

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can you twist or pull back on the lance to lower the pressure?
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Click on the link below and you will find replacments

You need to work out if the cost of two batteries is cheaper than a deal on a new drill pack

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I had the same problem, the batteries are burned out, I know you can replacements at Home Depot but if you can wait try the interenet.

"Google" what you want.

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