Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: daz1977 on January 20, 2010, 09:26:50 am

Title: fao those with petrol pressure washers
Post by: daz1977 on January 20, 2010, 09:26:50 am: what is the power of your pressure washers, ie hp or psi cheers, as am looking at getting one just wanted to know that type of power i will need
Title: Re: fao those with petrol pressure washers
Post by: Nathanael Jones on January 20, 2010, 09:50:19 am: 13 hp, 4000psi, 15lpm

I'd prob recommend the 13hp, 3600psi, 18lpm pump or the 3000psi, 21lpm pump though as a turbo nozzle will more than make up for the lower pressure.
Title: Re: fao those with petrol pressure washers
Post by: michael papworth on January 20, 2010, 11:16:15 am: There are THREE different things quoted.

Power - HP or kW
Flow rate - litres per minute
Pressure - psi or MPa

The power is pretty obvious ... and it tells you indirectly how much water the machine will shift per minute or per hour. You'll be looking for something between 3.5 and 5.5 HP, but might want something more powerful. It depends on the purpose.

Flow rate. This is probably the most important thing. It's how much water the machine will pump per minute.

Pressure. This is probably the most misleading thing. A low power machine can produce a very high pressure but at a low flow rate. That is going to shift the dirt, but S L O W L Y. A high power machine can produce a high pressure and a high flow rate. Now that WILL shift the dirt.

So don't be blinded by pressure - which is what people try to sell you. Go for power and flow rate.

More power = more flow rate.

And nozzle size is important.
Title: Re: fao those with petrol pressure washers
Post by: cleaner-exteriors on January 20, 2010, 01:59:52 pm: min 13hp and always a honda
Title: Re: fao those with petrol pressure washers
Post by: evil genius on January 20, 2010, 04:22:57 pm: Quote from: Nathanael Jones on January 20, 2010, 09:50:19 am
13 hp, 4000psi, 15lpm

I'd prob recommend the 13hp, 3600psi, 18lpm pump or the 3000psi, 21lpm pump though as a turbo nozzle will more than make up for the lower pressure.

18lpm :o
thts alot and presume it would have to draw water as i cant see mains power keeping up with that

how big is you tank in the van?
working on that a 640L ibc would only last around half hour

thanks
ian
Title: Re: fao those with petrol pressure washers
Post by: Nathanael Jones on January 20, 2010, 04:49:34 pm: When I'm powerwshing I arrive with a full tank and have the tap filling the tank before the machine is even started. EVen so if the tap pressure is low you'll have to take a break every few hours to allow the tank to re-fill.

If you do a lot of pressure washing, a hydrant sand is essential. You might have to get a license for it tho depending on where you are.
Title: Re: fao those with petrol pressure washers
Post by: stevef78 on January 20, 2010, 09:39:07 pm: 13hp and 11hp honda washers using a 220 litre reservoir and/or customers wheelie bin :)
Title: Re: fao those with petrol pressure washers
Post by: Window Washers on January 20, 2010, 09:43:23 pm: Quote from: stevef78 on January 20, 2010, 09:39:07 pm
13hp and 11hp honda washers using a 220 litre reservoir and/or customers wheelie bin :)
;D