Good efforts Watts and Rebecca. Welcome back to the clean car owners club Watts 
.
Just a thought, I powerwash my car first then snowfoam, should I snowfoam first on to a dry car? Taa
Something I also wasn’t sure of when I first got my pressure washer.
Like Rebecca, I also snowfoam onto a dry car as I found it clings better to a dry car than a wet car. While the snow foam’s dwelling, I fill my three buckets and clean the ‘fiddly bits’; wheels, brake calipers, exhaust tailpipes, the bottoms of the sills (the bit below the black extended sill trim that’s covered with stone chip protection), wheel arch liners and (with a detailing brush) badges, front grille and inside the petrol filler flap and door shuts.
By the time I’ve cleaned those bits, most of the snow foam has slid off the car, so if there’s any left in bottle attached to the lance, I give the car a quick second snow foaming until the water runs clear through the snow foam lance, which also helps minimise the risk of the lance clogging up. Then I pressure wash any remaining snow foam off before the main wash.
Thanks SR. I think I might dedicate my time whilst the snowfoam does it's thing to the appreciation of camellia sinensis
Don't think there's a right or wrong as to when whether to use snow foam before or after an initial rinse. Technically though, the correct method would be to use a citrus pre wash first, then rinse then snow foam.
Whilst you do want some cling, you actually want the foam to work its way off the car on its own which is why when you see these ridiculously thick foams whilst it might look great, it's not really doing its job properly...
My 2 jobs this weekend.... Maintenance wash on the GTS and full deep clean on the BMW - this was a serious task as not been properly washed in 3 years and 4k miles! You can see the snow foam literally dripping off which for me means its working.
