Wakey get told all the time to share a stadium with Cas. It's exactly the same.

Why would you be sure of that?

We don't want them, much more kudos having man u reserves sharing than that lot

A single club playing out of a stadium doesn't make sense financially. Whether it's another rugby league club, a union club or a football club, shared stadiums are the only way to make them financially viable.

Forward thinking club, Gloucestershire all golds, are in talks about building and sharing a stadium with football club Gloucester City.

I think that you should re phrase that.
Sharing may make more financial sense but, it's not absolutely essential.
Of course, in the modern world, its all about "maximising revenue streams" and the more use that clubs can get out of their facilities, the better it should be financially, that is, unless you share with a premier league football club and then you can only play when they let you

Or a Third Division Football Club?

FA rules are the same for any club in any division, ie. ground sharing is only allowed if the football club has priority over the ground. AFAIK it's simply not possible for an RL club (or anyone else) to sign a contract that gives them priority.

Hull FC don't seem to have too many problems.

Their ground isn't built on a swamp

I think he was referring to the fact that the football club doesn't have priority over the rugby club. They are both tenants.

Well, if EGW is correct in his assertion upthread that it's an FA rule, then that's not a true statement, is it?

2.3.1 A Club’s Ground may be shared with another Club or any other club (including a club
engaged in another sport) providing, where sharing with a football club the Club or club
playing in the most senior competition has priority of fi xtures at all times and, where
sharing with a club engaged in another sport, the Club has priority of fi xtures.

TAKEN FROM THE f.A's standard rules.....