Snow Foam Newbie

[MondeoMan1981]

Afternoon all.

Live in a 4th floor flat and got fed up lugging buckets up and down.

So have bought a 10L pressure sprayer for rinsing and got a 1.5L pressure bottle for foaming.

Planning on using the pressure sprayer for a quick rinse over, then foam, then rinse then wash with bucket and mitt then rinse and dry - much less carrying stuff and will use less water.

Any tips on mixture/technique for foaming? Warm water? Shake it up? Etc