My mobile home has low water pressure; when using the sink, there is no pressure at other spots. Low pressure throughout the home.

What's the PSI entering your unit> Back to you, Tom

If there is no pressure in entire mobile home than I would first talk to you neighbors to see if the problem is in your house only or if there is low water pressure in entire mobile home park.Then, I would look at the Main Water Valve ( at curb and outside of your mobile home ). Make sure it is open all the way and / or that it is not stuck in closed position. Also, check your pressure regulator for proper operation. It has adjustment screw and therefore pressure can be adjusted up. Back to you. Milo