Product Feed Line Sizing

[RacinJason]

So I had a car wash service company out to look over my equipment and he recommended that I increase the size of my product feed lines to my SS bays from 1/4 inch up to 3/8 inch. If I did such that I would be much happier with how everything was delivered. what are you all running out to your SS bays? would I also increase the air line feeds?

 

[I.B. Washincars]

3/8 to the manifold above the boom, then 1/4 from the manifold to the gun.