[newell_0]

I went down the path of having a 50' long pit with steps and grates to cover it etc.  in the end, i am very glad i didnt do it.  

but...i didnt really have a choice.  the building department said no, or at least it was no unless there was ventilation, sump pump, on and on.  and the estimated price was getting extremely high.  

and in the end, it makes that garage space unusable for anything else.  

tom

That is interesting. I would have done the same thing - not do it under those conditions. The one I had done for my car, I sort of did it the last minute after my house was complete. When I was getting ready to pour my garage floor I decided to do it and it was easy to do with sandy soil. For a motor home, we are talking about something much more substantial and can certainly understand the concerns.