Originally Posted By: Vikas
I went through almost 135 faucets on Delta website but could not find this faucet.
That's a delta monitor, perhaps either a 1300 or 1400 series. They're pretty much "builder grade" faucets, but very simple to repair. The trim may be different but the internal components are the same.
Originally Posted By: Vikas
I recall mine had some special temperature controls built in. I think it was supposed to keep the temperature constant and I think it was called "Monitor Series"
Anti-scald technology isn't anything special-every bath/shower faucet is required to have it. It's been code almost everywhere since the late-1980s or early 1990s.
Originally Posted By: Vikas
Believe me, I already tried Kroil etc :-(
That's the absolute worst thing you could have used. Kroil will degrade the plastic and rubber in the cartridge and cause it to leak.
You should have used silicone faucet grease to lubricate any of the internals. However, there is just a screw that needs to be loosened slightly to make the temperature control easier to turn. It takes about 2 minutes, a flat bladed screw driver and a phillips #2 screwdriver to do it.
Originally Posted By: Vikas
I also realized that there is no access to change the faucet. I can't even see in the back of faucet to see if supply lines are soldered in or are threaded in. If I need to replace the entire faucet, I would have to cut a hole in the drywall on the other side. There is also not a shut-off valve for the tub/shower. Why can't there be plumbing code making this illegal? Or the reason for having plumbing code is to make sure plumbers can make lots of money?
If you can't do something as simple as a drywall repair, then you most certainly should keep your hands off any plumbing. Leave it to people who know what they're doing.