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#2103933 - 12/12/10 04:01 PM pressure washer - can I run W/O water
Donald Online   content


Registered: 03/21/04
Posts: 13551
Loc: Upstate NY
I need to work on my pressure washer over the winter in my basement. I'd like to start it briefly. Will no water harm it?
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#2103937 - 12/12/10 04:04 PM Re: pressure washer - can I run W/O water [Re: Donald]
mikiee Offline


Registered: 10/04/10
Posts: 215
Loc: Missouri
I believe that water cools the pump. Will 30 secs of running harm it? Who knows. I would think you have water access in your basement. Just hook up a hose when you need to start it to be safe.

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#2103945 - 12/12/10 04:18 PM Re: pressure washer - can I run W/O water [Re: mikiee]
chubbs1 Offline


Registered: 06/09/10
Posts: 4574
Loc: Merritt Island FL, USA
Originally Posted By: mikiee
I believe that water cools the pump. Will 30 secs of running harm it? Who knows. I would think you have water access in your basement. Just hook up a hose when you need to start it to be safe.


+1....NOOOOO You MUST hook up hose. You will burn out the engine. I have made the mistake myself. Let me add, I don't exactly know what you mean by briefly, but no longer than 30 secs. That was the rule we all had at a pressure washing co. I worked for. My boss was forgiving eek


Edited by chubbs1 (12/12/10 04:22 PM)
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#2104044 - 12/12/10 06:37 PM Re: pressure washer - can I run W/O water [Re: Donald]
SaturnIonVue Offline


Registered: 10/15/05
Posts: 585
Loc: New Orleans, LA
I wouldn't try it. Every brand I've ever heard of warns that running the pump without water hookup will damage the pump. Not worth the risk, no matter how short a time you run it.
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#2104821 - 12/13/10 01:50 PM Re: pressure washer - can I run W/O water [Re: Donald]
Ken2 Online   content


Registered: 12/02/02
Posts: 6214
Loc: Washington St.
Slip the belt off. You can run the engine all you want without running the dry pump. Or set up a bucket with an outlet in the bottom feeding the pump and a return into the top of the bucket from the pump...no restriction in the return so little pressure is developed. Be sure you have your will updated before running the engine in your basement. frown
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#2105193 - 12/13/10 09:22 PM Re: pressure washer - can I run W/O water [Re: Ken2]
cronk Offline


Registered: 01/06/09
Posts: 708
Loc: Watertown, New York
Originally Posted By: Ken2
Slip the belt off. You can run the engine all you want without running the dry pump. Or set up a bucket with an outlet in the bottom feeding the pump and a return into the top of the bucket from the pump...no restriction in the return so little pressure is developed. Be sure you have your will updated before running the engine in your basement. frown


most pressure washers I have seen are direct drive...no belts.
Do not run it without water in it or you risk ruining the pump.
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#2105259 - 12/13/10 10:51 PM Re: pressure washer - can I run W/O water [Re: Donald]
oilboy123 Offline


Registered: 12/05/03
Posts: 6596
Loc: Everett, Washington
Pull the pump off. Or don't run it, or you will do damage.
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#2105710 - 12/14/10 01:33 PM Re: pressure washer - can I run W/O water [Re: Donald]
oilboy123 Offline


Registered: 12/05/03
Posts: 6596
Loc: Everett, Washington
You could also hook up the garden hose and tie a rope to the wand handle with the nozzle on low pressure to test it. Just stick them outside and with the nozzle on low pressure it won't affect the engine much.
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