I am trying to replace a bathtub drain in my MH. I had to buy an easy out due to the cross arms missing. I finally was able to turn it but the ABS adapter is turning also. What holds the ABS adapter in place? The access panel underneath the trailer doesn't give access to that part of the tub, at this point I can only assume I will have to cut back the covering and remove all the insulation in the sub-floor. It still is holding in the pipe. I probably shouldn't be doing this at my age. 
