It would have to be the controls or the shower head. Distance from the heater or size of supply lines shouldn't have much affect. The only variable would be the control or shower head and either one could have a flow restrictor in it or both.
Its a loss in water pressure to the shower.
6.3 gallons of water us used
A malfunctioning water heater can cause hot and cold water to surge through the shower heat. A faulty water pump can also cause this problem.
you have trash in your line take the shower head off and remove trash or possibly in water valve at shower
It will not work to smoke while in shower as the water will turn off the cigarette or cigar.
Your hot water heater is not large enough.
if its just a shower and no tub spout then it most likely must be in your shower head and if its a hand held shower head (with a flexible hose attached) it most likely has a bad seal or some other way which allows air to get inside and drain the water out slowly. The same can be for a shower with a tub spout diverter and the shower head has a bad seal thus letting the water drain down the tub spout and it can be a real slow leak to cause the squeaking noise 20 minutes later, my guess of the squeaking noise would come from the air being pushed inside the shower head.
Seats in the main valve body are leaking by, allowing water to go to the shower head.
Shower only runs for 5 minutes, but does the job.
It depends on how big your bath is, and how fast the water is running in the shower.An average bath uses between 30-50 gallons of water. An average four minute shower with an old shower head uses 20 gallons of water. With a low-flow shower head, you only use 10 gallons of water.So a shower is probably better. People who are interested in saving water would try to limit their shower time to four minutes. You don't need 10 minutes to wash yourself.
If you have a new pressurised water system there is a possibility that the added water pressure could cause a leak.
Instructions on the box state to put on, keep out of the shower for one or two minutes, get in the shower and keep water off of the cream for 2 to 6 more minutes. I have found that you can just stay out of the shower for the whole time and maybe turn on the shower for the steam, which is probably the helping factor for this product.