Yes, I have the old style solid 8" Frisbee style main drain top that has become dislodged. The plastic ring that it attaches to has lost its screw tabs and I was wondering how to fix this? I figure I will more than likely have to buy the new style of drain top but this is not a job that I can do by myself. I have no scuba gear and draining the pool is out of the question. I can buy the new style top for $40.00 or so but what am I looking at for a company to come out and repair this for me? Any ideas?