Refer questions

[Landsub]

I have a small rise on my driveway so my refer will not come on. Any advice on what I can do?

 

[Rosy]

Can you put enough blocks under the front to level the trailer? That's what my parents in law do.

 

[Landsub]

that is a possibility. I am hoping that someone would know at what point is the refer not level. 1”, 2”?

 

[Landsub]

Other blogs say that a refer should be no more that 3degrees from level. I used a 3ft level on the counter top, raised the end to be level and measured the distance, 3”. attempted To find a conversion, but had to be a scientist to figure. Does anyone have an answer? (Please be kind, i am just a old submarine sailor)