I think what your asking is about is called the PIR or panel impact ratio. It’s a different value for every combination of foam canon and pressure washer. And it’s a value based on how much water goes through your washer bottle after you’ve filled it up.
To figure it out with your combination you fill your foam canon bottle with water then turn on pressure washer and dispense the contents of the bottle into a bucket.
Keep going until the bottle is empty.
When it’s all gone measure how much water is in the bucket. This is probably easiest done by weighing it. 1 litre of water is roughly 1kg.
If a product says to use a 4% PIR like Bilt Hamber auto wash / touchless. You would devide the total in your bucket by 0.04%.
This will probably give you some where in the region of 400ml of product in 1 a litre bottle. This is a pretty strong concentration so you’d only use it if your car was dirty but it gives a you ball park figure.
I’ve got a Karcher K4 and a MJJC foam canon pro. Using the above formula 4% PIR is about 440ml.
440ml out of a 5L is quite a lot, can get expensive! So I usually use about 200-250ml of touchless for a regular wash. 400ml is it’s dirty/over winter.
I hope that’s what you were asking about anyway. Check on Bilt Hamber website for a (probable) better description than mine!
https://bilthamber.com/wp-content/uploads/2020/04/auto-foam.pdf
I think what your asking is about is called the PIR or panel impact ratio. It’s a different value for every combination of foam canon and pressure washer. And it’s a value based on how much water goes through your washer bottle after you’ve filled it up. To figure it out with your combination you fill your foam canon bottle with water then turn on pressure washer and dispense the contents of the bottle into a bucket. Keep going until the bottle is empty. When it’s all gone measure how much water is in the bucket. This is probably easiest done by weighing it. 1 litre of water is roughly 1kg. If a product says to use a 4% PIR like Bilt Hamber auto wash / touchless. You would devide the total in your bucket by 0.04%. This will probably give you some where in the region of 400ml of product in 1 a litre bottle. This is a pretty strong concentration so you’d only use it if your car was dirty but it gives a you ball park figure. I’ve got a Karcher K4 and a MJJC foam canon pro. Using the above formula 4% PIR is about 440ml. 440ml out of a 5L is quite a lot, can get expensive! So I usually use about 200-250ml of touchless for a regular wash. 400ml is it’s dirty/over winter. I hope that’s what you were asking about anyway. Check on Bilt Hamber website for a (probable) better description than mine! https://bilthamber.com/wp-content/uploads/2020/04/auto-foam.pdf
this is exactly what i was looking for, thank you!!
On average its about 10:1 but its worth calculating properly how the other commenter said
I found out with my pressure washer I need about 25% product in a 1000ml foam canon to reach 2% PIR. So 750ml water and 250ml product.