Momentum I don't know why there is no water in the bowl after use. I haven't paid much attention to it. Next time I can fill it and see if the water stays in the bowl or if it slowly goes down on its own.
Sometimes when I flush it the waste and tp leave the bowl but accumulate in the cavity beneath the flapper. I grabbed a stiff stick and shoved it down there and eventually got it to flush properly but the smell now is enough to knock a buzzard off a gut wagon.
Knowing how an rv toilet works would probably help get this issue resolved but I simply don't know anything about them.