Kitchen sink pipe assembly glued together
So past couple days we noticed kind of rotten smell coming from the double sink. Have had this before and Drano did the trick. This time it wasn't quite as effective. I can do a second dose but it got me thinking, why is the smell there in the first place?
Well I just emptied the P trap and ya some nasty little pieces of whatever came out. And took apart the pipe assembly and I can see with the flashlight they they are lined with whitish gunk. So maybe years of grease buildup? Been in this house for 3 years, not sure what previous owners were putting down there. Or maybe this is just naturally going to happen. I suppose this grease buildup is part of the smell.
So I was thinking I would just take each PVC pipe and joint apart and clean them with a wire brush and sponge with some soap outside. Problem, it looks like they are glued together. Is this common? Think I could use a knife to cut into the seal to get them apart?
I took the assembly to HD and guy said the top parts where they connect to the drains cannot be replicated now. He showed me some other parts as part of a work around solution, but I'm no handyman and I'm afraid I will screw this up. Plus I priced everything including a hacksaw, plumber's putty and tape and it'll be around $65.
Any suggestions in regards to taking the existing apart?
Thanks for any suggestions.