[Jay Le Huray]

after scrubbing the windows I always rinse using full pressure and always have done.

Sometime ago I was out with a mate whilst he was cleaning and he was rinsing only using  what seemed to me to be half pressure
to me, his thinking was it saves water but my belief is it doesn't do the job  properly.

what are your thoughts on this?

[Smudger]

Do whatever suits you and gives you threshold you want

Pencils or can jests
Hot or cold water
Rinse on or off the glass
Flocked or unflocked bristles

So many options😜

[dd]

Are you saying that you use a higher pressure to rinse and a lower pressure to scrub?

[Perfect Windows]

after scrubbing the windows I always rinse using full pressure and always have done.

Sometime ago I was out with a mate whilst he was cleaning and he was rinsing only using  what seemed to me to be half pressure
to me, his thinking was it saves water but my belief is it doesn't do the job  properly.

what are your thoughts on this?

I started with my pump set at 30.
Then I went to 50 and, immediately, my water use went down.
Then I went to 70 and the same thing happened.
Now I'm at 84 (no idea why that exact number) and I use less than ever.

High flow rates mean you can clean and rinse quickly enough that you use less. I use about 20 litres a clean.

Vin

[AuRavelling79]

after scrubbing the windows I always rinse using full pressure and always have done.

Sometime ago I was out with a mate whilst he was cleaning and he was rinsing only using  what seemed to me to be half pressure
to me, his thinking was it saves water but my belief is it doesn't do the job  properly.

what are your thoughts on this?

I started with my pump set at 30.
Then I went to 50 and, immediately, my water use went down.
Then I went to 70 and the same thing happened.
Now I'm at 84 (no idea why that exact number) and I use less than ever.

High flow rates mean you can clean and rinse quickly enough that you use less. I use about 20 litres a clean.

Vin

I don't even have a flow controller. 

[JandS]

Yes use mine at 75 and use less water than when I was using 40 then 55.

[Ascjim]

As the pump gets older, the higher number you need it on the controller to compensate.

[zesty]

I run it around 75, but it also depends on your calibration setting.

[Stoots]

Quicker you can rinse quicker you can get to the next job so I would do whatever you think is the fastest that does a good job.

I lve tried using say 50 and it's like watching paint dry waiting for it to rinse properly. I run mine flat out.

[Jay Le Huray]

Are you saying that you use a higher pressure to rinse and a lower pressure to scrub?

no i scrub  and rinse using max pressure Oh and pencil jets

[M & C Window Cleaning]

The length of the hose you use will have a bearing on where you have your pressure set in order to get adequate flow at the brush.
From what I've read on here 100m seems to be about average but some use longer and some shorter. One friend of mine used 200m for a while.
This may also explain why some can rinse well at a lower flow setting whilst others have to have theirs set higher

[Ian Sheppard]

after scrubbing the windows I always rinse using full pressure and always have done.

Sometime ago I was out with a mate whilst he was cleaning and he was rinsing only using  what seemed to me to be half pressure
to me, his thinking was it saves water but my belief is it doesn't do the job  properly.

what are your thoughts on this?

Hello Jay. There is no mention of Hose ID in the post. Hose size can make a difference to the amount of flow achieved at the brush. This is because the hose restricts how much water will reach the brush. The smaller the hose ID the less water it can carry. The amount of hose run out as already mentioned will also impact how much water reaches the brush.

A 50 meter run of 8mm ID hose might see 2 litres a minute reach the brush at a flow of say 70 for example with the pump drawing around 3amps.
A 100 meters of 6mm ID might for example see 1.7 litres reach the brush at a flow of 70 Amp draw would still be around 3amps

In reality every system and cleaner will have different preferred flow rates. I was speaking to a chap yesterday who sets the flow to 16.

The Controller does give a range of flexibility to suit was is needed

[zesty]

after scrubbing the windows I always rinse using full pressure and always have done.

Sometime ago I was out with a mate whilst he was cleaning and he was rinsing only using  what seemed to me to be half pressure
to me, his thinking was it saves water but my belief is it doesn't do the job  properly.

what are your thoughts on this?

Hello Jay. There is no mention of Hose ID in the post. Hose size can make a difference to the amount of flow achieved at the brush. This is because the hose restricts how much water will reach the brush. The smaller the hose ID the less water it can carry. The amount of hose run out as already mentioned will also impact how much water reaches the brush.

A 50 meter run of 8mm ID hose might see 2 litres a minute reach the brush at a flow of say 70 for example with the pump drawing around 3amps.
A 100 meters of 6mm ID might for example see 1.7 litres reach the brush at a flow of 70 Amp draw would still be around 3amps

In reality every system and cleaner will have different preferred flow rates. I was speaking to a chap yesterday who sets the flow to 16.

The Controller does give a range of flexibility to suit was is needed

Hi Ian, when he says 16, is he talking on the digital controllers? Because that would be impossible to clean windows with, assuming he’s got 80-100m of hose.

Perhaps his calibration is set to 99…

[windowswashed]

When it comes to biting cold weather below zero, up goes the flow controller and my attitude is fluff it, windows are getting done extra quick, that's enough, Fluff it, that I'll do! 

[dazmond]

Quicker you can rinse quicker you can get to the next job so I would do whatever you think is the fastest that does a good job.

I lve tried using say 50 and it's like watching paint dry waiting for it to rinse properly. I run mine flat out.

50 is plenty with hot water and a newish pump....full flow is too much for regular cleans IMO

[Jonny 87]

95 for us on our controllers with hot water too.

3 mill jets so it’s more flow and less pressure. It’s impossible to clean a window slowly with this set up.

[zesty]

95 for us on our controllers with hot water too.

3 mill jets so it’s more flow and less pressure. It’s impossible to clean a window slowly with this set up.

3mm jets here as well.

Massive difference in rinse performance, less splash back.  More water down the glass 👍🏼