Reasons for a low hot water pressure

A steamy hot shower is the best way to relax after a long day. However, if the water pressure drops slowly, it can cause frustration. What causes low hot water pressure? And how can you fix it?
Reasons why your hot water pressure is too low
- High water consumption – if you use your appliances and shower simultaneously, the pressure can drop. You can solve this problem by coordinating water use across the day.
- Incorrect installation – many issues are caused by incorrect hot water installation.
- Sediment accumulation – has your hot water supply been affected by this? This could be caused by sediment buildup in your storage tank. It may be necessary to flush your hot water tank regularly, depending on the water quality in your area. Contact your plumber if your tank has not been flushed in a while. If you need to prolong the life of your hot water system and prevent future problems with low hot water pressure, we recommend that you have it flushed every other month.
- Blocked pipes – does your water flow slow down over time due to blocked pipes? Water flow can slow when pipes accumulate limescale, sediments, and other debris. Your plumber will be able to clean the pipes or replace them if this happens.
- Tempering valve – tempering valves can be installed to control the temperature of your hot water. It mixes cold and hot water to provide water at a lower temperature to the outlets. Problems with the tempering valve could lead to low water pressure or lack of hot water supply. This is a simple fix. Contact your local plumber to replace the valve.
- Filters that are blocked – filters can collect sediment, just like pipes. The problem can be fixed easily by replacing or cleaning the filters.
- Showerheads & taps worn out – over time, showerheads and taps can collect debris. The problem can be solved by either replacing or cleaning the fixtures.
- Pressure regulator – is your water pressure fluctuating – is it too high or low? Your plumber will be able to fix it and adjust it to the correct level.
- Partially closed valves: a partially closed valve can cause a low water supply. These valves can be checked and opened if necessary.
- Leaks – do you see water around your hot water tank? If this happens, call your hot water plumbers immediately to turn off the main water supply. Combining electricity and water can lead to serious health problems.
Diagnosing low hot water pressure
There are many reasons why hot water pressure is low. These include faulty fixtures, problems with the hot water system, and broken pressure, regulators. It is essential to pinpoint the source to avoid the horrible shower trickle.
Did you know that your household’s water pressure should not exceed 500kpa (72.5psi)? A pressure gauge is a tool that can help you determine the water pressure in your house. Low pressure is defined as reading below 275kpa (40psi).
These steps quickly identify the cause of low hot water pressure
You should check the water pressure in the fixtures and the whole house. If it happens only when you use the hot water tap, your water heater could be the cause. A blocked fixture could be a problem if the issue is limited to specific taps, mixers, or showerheads.
Is it cold or hot water that is causing the low pressure? A broken pressure regulator or closed shut-off valve could cause low water supply in hot and cold water.
Inspecting your hot water heater for any leaks or rust would be best. If it is corroded, leaking, or damaged, it could affect your water supply.
How to fix low hot water pressure
These problems require professional help as DIY can often lead to more severe consequences. Hot Water System Perth has experts to help you with your low hot water pressure. We know how frustrating water problems can be, and they can help you relieve your stress.