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UK General Cleaning Forum => General Cleaning Forum => Topic started by: Ashley Brothwood on May 01, 2013, 11:06:15 am

Title: How high can a pressure washer pump
Post by: Ashley Brothwood on May 01, 2013, 11:06:15 am

Hi I've got a 13hp honda pressure washer running a hawk pm50 pump at 18lpm how high can it pump vertical
 I've got to clean roof on a commercial garage that's about 3 stories high,
Im guessing it should have no problem just didn't want to get there and the pressure be severely down
Thanks

Title: Re: How high can a pressure washer pump
Post by: Rob_Mac on May 01, 2013, 03:41:07 pm

Ashley

This is something we do all the time. The furthest hose length I have run is well in excess of 200 metres, could have been closer to 300. That's just short of a third of a kilometre!!

If I remember right you lose 23psi on every 100 feet of hose attached so you will be ok.

Rob ;D

Title: Re: How high can a pressure washer pump
Post by: Ashley Brothwood on May 01, 2013, 08:27:26 pm

Ok thanks I thought it was something like that. I've got about 150m in total so shouldn't lose that much pressure

Title: Re: How high can a pressure washer pump
Post by: Rob_Mac on May 01, 2013, 09:08:32 pm

Been out cycling - 12 miles - crisis, life, mid (rearrange)

Even taking it up to fifth and six floors and above, looked at a 11 storey job once. Don't think you will get to the point where it becomes an issue.

I have got some big pumps pushing it through, though - that could be the deal breaker!

Rob ;D

Title: Re: How high can a pressure washer pump
Post by: Matt Gibson on May 01, 2013, 09:18:13 pm

I have run 15lpm &21lpm over 150ish meters and didnt even notice a difference.