The water shut-off valve on the cold inlet pipe above the water heater could be partially plugged with debris. Turn off the main water supply shutoff to home and take the valve apart to clean. JR
Yes, if it is electric one of the elements may be faulty, or the thermal switches could be out. - If it is gas, check the pilot light. If it keeps going off you need a new thermocouple.
poor water pressure from your city. Or if you are on a well, the pump might be going bad.
Pressure variations in different parts of a home can almost always be found within the fixtures themselves. Sometimes, a generalized pressure problem can be traced to nothing more complicated than a well-overdue whole-house water filter replacement! However, the variations throughout your home probably can't be attributed to a single, localized problem.
If you are on a well it means you have a problem in the pressure tank. On city water means pressure in general is down, or your PRV is failing.
A break in the line from curb to house, or from well to house. in some cases pressure reducers have a screen in it. Best is to start at one end and check for leaks, and if possible check for water pressure.
Replace the tub faucet.
Typically it's because of restricted flow, either from small pipes or from excessive mineral buildup on the inside of the pipes. I honestly do NOT believe that water pressure "drops throughout the house" -How do you know that, have you measured it with a gauge at each faucet, or are you assuming. .
House water pressure should be around 50-60 psi.
Because the pressure is exerted throughout the body of water.
We had the same problem. If you have low water pressure coming into your house this will affect the amount of water going into your ice maker.
A mega-flow system is simply hot water stored under a certain pressure. The idea is to give one the same pressure throughout the house. This is a good choice of a boiler if one has high hot water demand.
NO.
If the whole house is served with well water there is no problem doing this. If only this bathroom is to be supplied with well water then it needs it's own pressure tank.