hi what to do if hav scratches ? other than replacing the whole door ?

Anyone face issue with foam not sticking on your car?
Bought some pressure washer and use igl foam

The foam is thick but it won't stay for long due to my car have wax and the foam jz like water will have beading effect..

Anyone use grit guard from Shopee? It cheaper not sure should I buy 2 guard for each bucket to avoid those dirt float back.. Usually I jz use 2 microfiber cloth 1 top 1 btm..soap n rinse with hose.. Sometimes lazy to go diff place wash then my condo thinking use 2 bucket method as there is no carwash bay

1 grit guard with 1 bucket? no recycling the mitt?
my mf also always dark fast.. how wash also cant become clean.. no care i just continue use it haha