We have a Pentair 6-way valve (model SM2-20-2/SM2-PP2) on our older pool. The backwash port looks like 1.5" threaded to ~2" slip on PVC union. I want to replace this with a NH threaded union for a fire hose that I bought. I know very little about pump pad construction and PVC connections, but it looks like the slip-on union is glued to the valve. Is this likely? If so, is there anyway I can remove it? Or will I have to cut my new fire hose?
Thanks for any input!