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View Full Version : Lack of hot water in only one shower


pgazz311
Jan 17, 2010, 10:19 AM
I have posted a question before about this shower/tub. I was able to solve the problem based on the info I got on this site, so I will try again.

In my house there is a shower/tub, and then a second shower (have 2 baths). The second shower has hot water until the cows come home, but the shower/tub will only have hot water for 10-15 minutes before the hot water runs out. The shower/tub has stronger water pressure than the freestanding shower... is there something I should do to the hot water heater to give me more hot water? We can't even fill our bathtub with hot water without it turning cold.

John A Smith
Jan 17, 2010, 10:52 AM
It is possible that the Cold water pressure is much higher than the Hot water (shower/tub) & when you open both the taps (Hot & Cold), because of the pressure difference, the cold water is also going into the Hot water tank through the hot water tap/pipe & hence cooling the Hot water tank. Is the cold water on Mains pressure ?

pgazz311
Jan 17, 2010, 11:04 AM
Yeah. We have city water so it's on a water main.