The lack of water pressure in the bathtub could be due to a clog or blockage in the bathtub's water supply line. This can restrict the flow of water specifically to the bathtub, while other areas in the house may have normal water pressure because they are not affected by the blockage. Checking and clearing the bathtub's water supply line may help restore water pressure in the bathtub.
Obstruction in the hot water supply line, bad valve, or broken water line. Drain system and remove valve cartridge, open hot supply to blow out line and see if water comes out. If it does than you have a bad cartridge, if not broken line that needs to be repaired.
Iron? == == Possibly a slight blockage allowing toilet water to ernter the waste line of the tub
Repair it or line it with a plastic bathtub liner.
YES, you do need a trap. Usually the bathtub drain is on the same sewer line as the nearby toilet.The smell from the toilet's discharge will sneak up through the bathtub's drain line without a trap ... not pleasant!.
remove alt and ac belts,then remove the black cover behind them make sure you line up the marks on the pulleys and castings when reinstalling
Yes and a vent and hot and cold water to it and a waste line would also be a great idea
yes
Install a checkvalve
To remove refrigerator doors with a water line attached, first turn off the water supply. Then, disconnect the water line from the back of the refrigerator. Next, locate the hinge pins on the doors and lift them out to release the doors. Be sure to have someone help you support the doors as you remove them to prevent damage.
A bathtub ring forms from the residue left behind when water evaporates, leading to the concentration of soap scum, body oils, and minerals along the water line. These substances then combine to create a visible ring around the tub. Regular cleaning can help prevent the buildup of this residue.
There may be debris or sediment blocking the water flow specifically to the bathtub and shower faucets, which is not affecting the toilet and sink faucets. This could be due to a clog in the pipes leading to the bathtub and shower, or an issue with the faucet itself. It is recommended to check and clean the aerators or call a plumber to investigate further.