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Old 30-10-2020, 11:35 AM   #1
GSB1
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HDD Road Rage pre-wash in snowfoam lance newbie question

I use High Definition Detail Road Rage as a pre-wash in a pump sprayer. Suggested ratios are 20:1 - 50:1.

For winter grime I use 20:1 (well close to anyway, roughly 50ml product in 950-1000ml water).

Now I am thinking to try this in a snow foam lance, which I am new to. Just as I think for the winter months it might be quicker and easier. I may still stick to the bottom half of the car, TFR style, rather than all over.

Anyhow the product states the same dilution ratios for pump sprayer and snow foam lance.

How can this be? Surely 20:1 in the snow foam bottle will end up way more diluted than the same mix in the pump sprayer?

Maybe this is one I need HDD to comment on, but just checking I am not missing something obvious, or completely misunderstanding first.

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Last edited by GSB1; 30-10-2020 at 11:37 AM.
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Old 30-10-2020, 08:48 PM   #2
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Would I be on the right track interpreting the 1:20 as 5% PIR and calculating the necessary ratio for my pressure washer/lance setup based on that?

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Old 01-11-2020, 07:39 AM   #3
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Quote:
Originally Posted by GSB1 View Post
Would I be on the right track interpreting the 1:20 as 5% PIR and calculating the necessary ratio for my pressure washer/lance setup based on that?

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Correct, 5%
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Old 01-11-2020, 05:18 PM   #4
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I know when I tested my power washer for BH AF at 4% as they use PIR. I filled foam lance with 1 litre of water on maximum foam setting and when it was empty I had collected 9 litres of water.

9000ml x 0.04 (4%) = 360 ml

1000ml - 360ml = 640ml

for for 4% I need 360ml:640ml (Product:Water)

You just need to find out how much water your power washer uses emptying your lance
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Old 01-11-2020, 05:23 PM   #5
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I did this yesterday and came up with 17L with the lance on the thickest foam setting.

I think I will repeat the test next time I need a bucket of water as this seems a lot.



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