Why Aren’t You Getting Enough Hot Water?


We’ve all been there: you’re looking forward to taking a nice long, hot shower but you turn it on only to feel tepid water that won’t heat up. Why aren’t you getting enough hot water from your water heater? There could be many reasons, so let’s get into them here.

There Could be Sediment

Sediment in your tank can be serious, usually leading to problems with the hot water that is coming from your tank. Especially if you have hard water, minerals tend to build up at the bottom, preventing water from getting heated properly. One way to address this is to periodically drain the tank (at least once a year) to clear out the sediment. If you see signs of rust in your water, though, this means corrosion is happening and you will need a new water heater soon.

The Thermostat is Broken

You can try turning up the temperature of the water using the thermostat. Just don’t go beyond 140 degrees because you don’t want anybody to be scalded. Most thermostats are set between 122 and 140 degrees F, says HomeServe.

If adjusting the thermostat doesn’t help, call a licensed plumber to troubleshoot the situation. Your thermostat could be broken or there could be another issue at play.

Your Water Heater is Too Small

Your hot water heater could be too small to accommodate the needs of your household and family. You may have installed your water heater back when you didn’t have kids, and now that your children are teens now and use showers and washing machines more often, you will need to increase the size of your tank. You may actually want to consider installing a tankless system for constant hot water on-demand.

The Dip Tube Broke Off

Water gets to your hot water tank via a plastic tube running down to the tank’s bottom. This prevents the cold water supply from mixing with the hot water at the tank’s top. When that tube falls off or breaks, the cold water can mix with the hot water, which cools the water that comes out of your shower head.


If you are running several appliances that require hot water at one time, such as the shower, dishwasher and washing machine, you may simply have run out of hot water. Try running your dishwasher or washing machine at off-peak hours when people don’t need to shower.

When to Call the Plumber

If you think your hot water heater is on the fritz, or it’s just too small for your growing needs, call a professional plumber to do an inspection. A reputable plumber will let you know if you need a repair or if a full replacement is a better choice in the long run.

Contact L&P Plumbing

Need a hot water fix or replacement? Let our experienced plumbers in Austin TX help. Give us a call at 512-468-9030 to get your free quote and to schedule an appointment. You can trust us to give you the best possible recommendation for your household.