I have a 135 litre 10 year old Rheen mains pressure hws fitted externall to the home. The flow rate from the hot water tap is getting slower and is 30% of the cold water flow tap flow and has little pressure behinf it.
Usually on the hot water piping, It starts to rust closed faster than the cold side, due to electrolosis. What you r discribing are the first signs of this happening. only solution is to replace the effected pipes..
SOURCE: hot water taps and showers pressure very low cold taps ok
there is a little cap on the hot and cold side above the shut off valves, turn the water off at these valve and take the caps off there are filters in there clean them off and reinstall them that should take care of the problem, you might want to flush the tank while your at it hook a hose to the hot side connector and run it out side or to a sump pump then turn on the cold water and flush it out you can also reverse this procedure by doing it on the cold side
SOURCE: low pressure on hot water taps and showers
Many states building codes require a pressure regulator and expansion tank for hot water heater installation. Check the pressure regulator if you have one as this would only affect the hot water pressure. Adjust or replace. Rap the expansion tank like knocking hard on a door. Hollow sound is good. Dull thud means it needs to be replaced as it is filled with water.
SOURCE: No water pressure in bath tub after turning off hot water heater
It could be back flowing into the hot water heater tank which is not full because of the leak. Even though the valve is closed on the cold water entry side, there is probably no valve on the exit side. That is how it is returning to the tank.
Testimonial: "Thank you very much, Rick! "
SOURCE: the hot water just trickles out of the hot water
Something is blocked. Turn off water to heater disconnect outlet and attach a waterheater flex connector to tank outlet bend other end into bucket. turn on water briefly - water should blast into bucket.
If not:>>>>>>>>>>
disconnect water heater inlet -you may find part of the flex washer stuck into the inlet nipple.
Or dip tube may have disintegrated and be plugging outlet nipple, if you have the energy saving nipples the ball can jam debris in the nipple.
If water does blast into bucket >>>>>>>>>>>>
Then the problem is farther down the line, maybe bad mixing valve.
disconnect mixing valve outlet and use a garden hose to backflush through mixing valve with bucket under hot pipe disconnected from water heater.
If flow through valve is restricted, replace valve.
SOURCE: Rheen water tank does not work
Hi,
Turn the water off and replace the relief valve...
If there is that much water running out of it the hot water hweater cannot keep up...
Replace the relief valve and then you will have hot water..
heatman101
Sediment clogs tankless pressure sensor without softener.
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