Gold Plated shower drain plugged

[chriscraw]

My 1991 Airstream 350LE is fitted with gold-plated bathroom fittings which I assume came as part of the "LE" or "Luxury Edition" package and may have been also installed in Airstream travel trailers of the same period?
Having searched the Forum and other sites, I can find no reference to this type of shower stall drain fitting (see pic below) which is of the "pop-up to drain, push down to shut" type of mechanism. The drain is now partially clogged however I can find no way to remove the mechanism and clear the device. Perhaps a Forum Member can assist (I've tried the baking soda/vinegar concoction but without success)?

[rmkrum]

Hm. I just replaced a similar pop-up tub drain at home the other day. The mechanism I replaced had a machine screw thread on the bottom that screws into the center of the drain. The white part has the pop-up ratchet mechanism in it.

From your picture, it looks like the top cap somehow came loose from the rest of it. Did it unscrew, or just pull off?

I think you may have to try unscrewing the white part that is still in the drain opening. Mine took a fair amount of force to initially get it unscrewed, but I was able to get a grip with both hands and get it out. The top cap was still on mine.

I got a replacement pop-up assembly from my local big box home improvement store. There were several lengths and diameters available, so bring the old parts along to check size. With luck, you might even find a gold-colored one.

[AlinCal]

Yep that's a somewhat common style drain and as said the inner plastic part does seperate/unthread, do I see a flat screw driver slot in the top?

[chriscraw]

Thanks to both Forum Members for thoughts and questions. Based on your replies, there was indeed a machined screw slot on top of the drain plus (underneath the pop-up cap just presses on to the mechanism. Due to this slot being both shallow and long (1/2 inch) I just had not noticed it before. Although I have a 1/4 inch wide screwdriver, due to the shallowness and width of the slot, I just can't get enough purchase to break it loose (unlike being able to get leverage with both hands. To avoid stripping the slot (the fitting is brass), I'm going to have to "fashion" or locate a driver that has a thick, wide tip before tackling the screw again. Right now, I'm in the wilds of northern New Mexico so this will have to wait. Really appreciated your response which solved the "how to get it off" question.

[AlinCal]

Being that its been in there some time it may not just unscrew like it was assembled yesterday, If you can get any penetrating oil on it and let it sit that may help.

[chriscraw]

Success it is to hear the sound of water once again gurgling down the drain!
Based on your collective comments and knowing that some sort of penetrating liquid would be difficult to apply, I once again tacked the screw with more downward force and torque...and voila!
Using a drain millipede, the nasty process of extracting gunk was able to proceed. The result is a freerunning drain or at least as free as a 2-degree slope to the front end will allow...Wheels are already 6" off the ground at the front to compensate for the hill I'm backed into!
I will, however, seek a replacement to complete the job. Thanks again for advice and support
Chris