Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Perfect Windows on May 22, 2019, 04:19:15 pm

Title: Flow rate vs speed
Post by: Perfect Windows on May 22, 2019, 04:19:15 pm
Watched a guy today doing a house while I was eating my lunch.

I watched him working very slowly with an utterly feeble dribble of water and decided to time him.

 Standard size with an opener running the full width - you know the kind.

 (http://www.cleanitup.co.uk/smf/1558537572_Clipboard01.jpg)

One minute and five seconds. Painful to watch. Excruciating.

Vin
Title: Re: Flow rate vs speed
Post by: dazmond on May 22, 2019, 04:32:49 pm
was he using a backpack/trolley?....you usually find this is what the dribble guys use.....scrimping on water....

it would take me around 20 seconds to clean that window on a maintenance clean(including frames and sills)
Title: Re: Flow rate vs speed
Post by: Perfect Windows on May 22, 2019, 04:42:10 pm
Nope - it was out of a van. A big van but no idea what size tank.

Vin

Title: Re: Flow rate vs speed
Post by: Cookie on May 22, 2019, 04:53:06 pm
Turning up your flow rate is the easiest way to increase your speed (as well as your turnover). It does at first seem counter-intuitive from a water conservation point of view, yet still I find I'm using the same amount of water since I'm rinsing less.

I increased my flow rate a couple of years ago (after advice on here) & I calculated that I'm turning over an additional £5 per hour.
Title: Re: Flow rate vs speed
Post by: zesty on May 22, 2019, 05:07:35 pm
I have found I do use more water with the pump at full chat, so I’ve got it on 90 (out of 99) this is my happy medium. Fast and easy work.

When I had it on 99 I  noticed I was going through water much quicker, but not actually rinsing faster. So 90 it is!

To think when I first started I had it on 38! No wonder it took ages!! 🤪
Title: Re: Flow rate vs speed
Post by: Shrek on May 22, 2019, 05:51:26 pm
I have found I do use more water with the pump at full chat, so I’ve got it on 90 (out of 99) this is my happy medium. Fast and easy work.

When I had it on 99 I  noticed I was going through water much quicker, but not actually rinsing faster. So 90 it is!

To think when I first started I had it on 38! No wonder it took ages!! 🤪

When I first started , I had my pure freedom trolley on 12 🙄 . Van mount on 80 now - super fast !
Title: Re: Flow rate vs speed
Post by: robbo333 on May 22, 2019, 06:09:12 pm
Sometimes, I up mine so fast, it rinses quicker than I can scrub!  ???
Title: Re: Flow rate vs speed
Post by: Slacky on May 22, 2019, 06:30:39 pm
I have found I do use more water with the pump at full chat, so I’ve got it on 90 (out of 99) this is my happy medium. Fast and easy work.

When I had it on 99 I  noticed I was going through water much quicker, but not actually rinsing faster. So 90 it is!

To think when I first started I had it on 38! No wonder it took ages!! 🤪

Measure the amount of water the pump produces by holding your brush head over an empty bucket on two separate occassions using the two settings you”re refering to.

Report your findings back on here, I imagine the difference will be zilch.
Title: Re: Flow rate vs speed
Post by: Michael Peterson on May 22, 2019, 06:32:21 pm
Funny that I also went from 99 to 90 and it’s perfect , also if you use dE detection controllers the calibration behaves much more on 90 vs 99 one thing I have just learned though is if you use the 100 d fan jets there is much better pressure and 70 seems like 90
Title: Re: Flow rate vs speed
Post by: nathankaye on May 22, 2019, 06:52:03 pm
Lol, brings back some painful memories from when I first switched over. I was so paranoid on first cleans (switching trad cleaned to wfp), it would take me ages.  I think I worked with a flow around 20 - 30 or so and that was about the norm for first several months until I came to my senses, well got sick of it taking ages. That I started experimenting with varying techniques and flow rates. After that I started experimenting with various jets/jet sizes/number of jets and different brush types. The amount of time and money I invested back then was crazy, but worth it.

He'll either improve or sack it off n sell up
Title: Re: Flow rate vs speed
Post by: Stoots on May 22, 2019, 07:18:45 pm
7  lpm pump, no controller so full whack

Title: Re: Flow rate vs speed
Post by: nathankaye on May 22, 2019, 07:26:23 pm
You guys shod try adding extra jets
Title: Re: Flow rate vs speed
Post by: Michael Peterson on May 22, 2019, 07:29:08 pm
try the 100 degree jets i never take of the glass so the splay doesnt matter but the pressure is unreal on these even on a lower fliw
Title: Re: Flow rate vs speed
Post by: dazmond on May 22, 2019, 07:34:39 pm
I only have my controller on 45-50 and its gushing out the jets at that setting....must be the hot water......i use microbore too....
Title: Re: Flow rate vs speed
Post by: Michael Peterson on May 22, 2019, 07:37:24 pm
yes defo hot mate , when i had an l5 a few years ago the hot would increase the pressure in the hose massively and burst outwhen turnin* the water on
Title: Re: Flow rate vs speed
Post by: nathankaye on May 22, 2019, 07:44:43 pm
I only have my controller on 45-50 and its gushing out the jets at that setting....must be the hot water......i use microbore too....

Dry clean won't like this, as this is definitely one benefit of hot water!
I run my pure freedom controller on 75, use 6 jets and also use microbore as well.  I can operate on a much slower flow rate but (esp in colder weather) it helps maintain the hotter temp at the brush end on a slightly faster flow rate.  That's my findings anyway.
Title: Re: Flow rate vs speed
Post by: dazmond on May 22, 2019, 07:45:49 pm
yes defo hot mate , when i had an l5 a few years ago the hot would increase the pressure in the hose massively and burst outwhen turnin* the water on

setting the CAL lower usually reduces this,thats what i do but its still a high flow on my controller....
Title: Re: Flow rate vs speed
Post by: Stoots on May 22, 2019, 08:30:20 pm
try the 100 degree jets i never take of the glass so the splay doesnt matter but the pressure is unreal on these even on a lower fliw

The noise they make on the glass made me bin these
Title: Re: Flow rate vs speed
Post by: Spotfree on May 22, 2019, 08:37:03 pm
I dont get much difference between 75% and 100% from the pump.
Title: Re: Flow rate vs speed
Post by: Smudger on May 22, 2019, 08:41:19 pm
try the 100 degree jets i never take of the glass so the splay doesnt matter but the pressure is unreal on these even on a lower fliw

The noise they make on the glass made me bin these

Customers love it - they think your pressure washing the dirt off  ;D ;D ;D
Even with the controller set at 65
Title: Re: Flow rate vs speed
Post by: zesty on May 22, 2019, 08:46:52 pm
I have found I do use more water with the pump at full chat, so I’ve got it on 90 (out of 99) this is my happy medium. Fast and easy work.

When I had it on 99 I  noticed I was going through water much quicker, but not actually rinsing faster. So 90 it is!

To think when I first started I had it on 38! No wonder it took ages!! 🤪

Measure the amount of water the pump produces by holding your brush head over an empty bucket on two separate occassions using the two settings you”re refering to.

Report your findings back on here, I imagine the difference will be zilch.

No mate, at full chat it’s going nuts. At 90 it’s just slightly nuts.

The pump controller probably isn’t that exact, so although we’re only taking ‘9’ difference, in reality it’s quite a lot for my system.

I was going through water like marathon runner at full chat. Backed it off to 90 and a very perceivable difference in water flow was the result.
Title: Re: Flow rate vs speed
Post by: SB Cleaning on May 22, 2019, 10:14:31 pm
I have mine on 50 out of 99