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zesty

  • Posts: 149
Full throttle pressure washer? Or 3/4 revs...
« on: May 17, 2018, 07:50:48 am »
Iíve always run at 3/4 ish revs to control the pressure/flow when pressure washing.

However, Iíve recently heard you should keep the pressure washer at full throttle as thatís where the best power curve is and the engine wonít be Ďlabouringí or Ďhuntingí. You should apparently use the unloader valve and not the revs to adjust pressure/flow.

Whatís everyoneís thoughts? I find full throttle is bad for fuel and I assumed itís worse for the engine... perhaps not...



Smudger

  • Posts: 7919
Re: Full throttle pressure washer? Or 3/4 revs...
« Reply #1 on: May 17, 2018, 02:54:56 pm »
Depends on what type of unloader you have

Generally why would you slow yourself down by running at 3/4 speed ?

We always run 100% and adjust pressure

In the early days you had the k2 (?) type with these I used to drop the revs when I needed

Darran
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

www.oddbodscleaning.co.uk

zesty

  • Posts: 149
Re: Full throttle pressure washer? Or 3/4 revs...
« Reply #2 on: May 17, 2018, 03:34:50 pm »
I just run at 3/4 because it saves fuel and means the turbo nozzle isnít destroying the pointing etc.
 
Iíve never bothered with the unloader, no idea what type it is Darren, itís a jetmac 21lpm 14hp loncin machine. AR pump.

Yes I know itís not a Honda before anyone asks, and yes itís a jetmac machine etc etc, but itís sebrved me brilliantly over the last 2 years.

Anyway, Darren, perhaps you will know the type of machine and whatís best...

Smudger

  • Posts: 7919
Re: Full throttle pressure washer? Or 3/4 revs...
« Reply #3 on: May 17, 2018, 04:31:06 pm »
Could be anything mate - depends on what the builder of the machine me fancied at the time - itís your machine/equipment so I would have thought you knew what you had, anyway sounds like your happily running it the way you are so it was a waste of time answering your query
Darran
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

www.oddbodscleaning.co.uk

zesty

  • Posts: 149
Re: Full throttle pressure washer? Or 3/4 revs...
« Reply #4 on: May 17, 2018, 05:59:58 pm »
You are a character Darren,

Yep more than happy to carry on as I am, itís just a standard looking black valve you turn to reduce or increase pressure. No idea what Ďmakeí it is, It just looks like every other pressure washer valve.

I know what machine Iíve got LOL. Just not what unloader valve Iíve got ::)roll

Hey ho  :)

mjm

  • Posts: 47
Re: Full throttle pressure washer? Or 3/4 revs...
« Reply #5 on: May 17, 2018, 06:28:48 pm »
full throttle all the way  and just use different  tips   for different    flow  never adjusted   unloader   

Smudger

  • Posts: 7919
Re: Full throttle pressure washer? Or 3/4 revs...
« Reply #6 on: May 17, 2018, 08:16:44 pm »
character ? me ?

you asked and i gave my opinion on how i run my 4 PW's - it appears that you didn't really like what you've already been told and even less when others are using it way.

Basically run your equipment how you like and of course if its working carry on that way - just makes this thread pointless when asking others only to be prickly at their replies

The best way to save fuel is have auto throttles fitted where the revs drop to idle when you release your trigger ( however this have their own issues now the line )

Darran
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

www.oddbodscleaning.co.uk

zesty

  • Posts: 149
Re: Full throttle pressure washer? Or 3/4 revs...
« Reply #7 on: May 18, 2018, 10:16:24 am »
Darren chill, thereís no issue!

I just wondered whatís correct in others experience. Iíll have a go with the unloader. No problems!

No idea why your thought I wasnít happy with the answers. I just have no idea what type of unloader I have, thereís no numbers or Ďmakeí on it.

Have a great day  ;D

chris scott

  • Posts: 3345
Re: Full throttle pressure washer? Or 3/4 revs...
« Reply #8 on: May 18, 2018, 08:06:00 pm »
Leave the unloader alone and use the throttle as necessary to adjust the pressure/flow    (within reason)
www.cleaning-service.uk.com
www.render-cleaning.co
Exterior cleaning specialists covering Merseyside,Lancashire and Cheshire. TEL 08000 933267

Jonny Swirljet

  • Posts: 72
Re: Full throttle pressure washer? Or 3/4 revs...
« Reply #9 on: May 19, 2018, 05:05:03 am »
I have a Pro 21/Honda - I was advised by the manufacturer to use full throttle and adjust with the unloader valve

chris scott

  • Posts: 3345
Re: Full throttle pressure washer? Or 3/4 revs...
« Reply #10 on: May 21, 2018, 05:43:20 pm »
Who manufactured it ?
www.cleaning-service.uk.com
www.render-cleaning.co
Exterior cleaning specialists covering Merseyside,Lancashire and Cheshire. TEL 08000 933267