Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Inskip1991 on November 30, 2011, 04:48:45 pm

Title: Flow rate?
Post by: Inskip1991 on November 30, 2011, 04:48:45 pm

Just a couple of quick questions from a newbie.

1. Is flow rate the same thing as psi?

2. What is the best rate for windows and why?

Thanks

Title: Re: Flow rate?
Post by: Pope vader on November 30, 2011, 04:55:56 pm

flow rate is how many ltres per minute

psi  is pounds per aquare inch

Title: Re: Flow rate?
Post by: bobplum on November 30, 2011, 05:08:17 pm

there is no standard rate for cleaning windows,different factors come into play.
For new cleans turn it up i use around 40 psi.
 on maintenance cleans approximately 25 psi and then it depends how old the pump is,we have two one about 5 years old and that runs at 36 psi on maintenance cleans and a new one which runs on 25 psi this is due to the age difference

Title: Re: Flow rate?
Post by: Paul Coleman on November 30, 2011, 05:17:12 pm

Quote from: Inskip1991 on November 30, 2011, 04:48:45 pm

Just a couple of quick questions from a newbie.

1. Is flow rate the same thing as psi?

2. What is the best rate for windows and why?

Thanks

Q 1.  What P V said

Q2.  It depends.  I probably run at 1.5 - 2.5 litres per minute.  Dirty first cleans with lots of rinsing for the higher rate.  Easy maintenance cleans for the lower rate.  However, if your water is unmetered and you have a large enough tank to last you all day, who cares?
Too low a rate will slow you down though if you like to make sure the job's OK by rinsing ell.