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Author Topic:   power washing
Dirt Administrator

Total posts: 6243
posted December 30, 2003 12:54 PM  
i've thought about that too, but i'm concerned the hot water will damage the pump.....

has anyone done this? my 3500 psi power washer uses a comet pump. will hot water toast it? i'm not going to be the guinea pig here.....

unregistered Total posts: 1363
posted December 30, 2003 03:05 PM           send a private message to outlawstock17   Edit/Delete Message   Reply w/QuoteBBBBBB
I used a friends gas powered pressure washer and he said it was fine to hook up to my wash machines hot water source.

It was a sears brand I can not think of any possible reason any water tool etc couldnt take warm water, its still just water, a seal would be a seal in my mind??

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Total posts: 1876
posted December 30, 2003 03:53 PM  
we use hot water alot when we pressure wash, and its a small electric, but i gave up on washing my car at home i will pay the 10 bucks so i dont have to clean up the mess in the wash area. but i live in town if i lived out of town and had a place i might,
but we have ran hot water no problem really but i am not an expert on pressure washers.

Dirt Full Roller

Total posts: 44
posted February 12, 2004 05:47 PM  
All of the factory made hot units heat the water after the pump, which I wouldn't recomend with a water heater.

jammin james
Dirt Maniac

Total posts: 118
posted February 12, 2004 07:44 PM  
we've talked about using a insta hot unit (hot water heater that hooks up in line at the sink)that we got out of a remodel job it will give you hot water on a waterhose. don't want to mess up the pressure washer (don't hardly work as it is) just wondering if it's been done? don't want to be the pig either!!

Dirt Maniac

Total posts: 102
posted February 24, 2004 05:21 PM  
I knew someone that did it and he had a harder time trying to keeping the water hose from bursting. He said that the heat made the hose stretch and they would pop after a while (month or so)>> He had to get a very heavy duty hose.

rico 08
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Total posts: 1139
posted March 04, 2004 04:51 PM  
I tried it and it works...not sure how long the $20 special pressure washer will stand it but so far so good and as far as the hose bursting i just used a washing machine hose since they seem to be ok for hot water...

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posted March 04, 2004 06:26 PM  
The pressure washer we have is a Karcher and it says inlet water not to exceed 104 degrees fahreheit.How hot is water heater water?

Dirt Maniac

Total posts: 171
posted March 08, 2004 03:51 PM  
I have a Karcher too. Any more info on this?

Dirt Freak

Total posts: 229
posted March 08, 2004 05:38 PM  
Most houshold water heaters have a adjustment on them for water temp. Most water heaters have adjustment from 110-140 degrees F. I keep mine in the middle usally 130 degrees. But you have to consider the heat loss from the water heater to the tap, I think you would expect at least 5-10 degrees loss.
Turn your hot water on at the sink, let it run for a minute or two, then stick your thermometer in the water and hold it there till it beeps (digital thermometer) just like your taking your body temp.
This will give you an idea how hot your water is.
Hope this helps.

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