can the water pressure valve from heater cause an explosion(pics) (10 points) ?

the nozzle was opened completely (fully opened to max ( red colored nozzle on the picture)  Will all this water pressure cause the heater to blow up? should the nozzle be turned to the middle how it was instead of full blast? It was turned to full this morning. (nozzle)  Im just worried it will blow up cause I dont know anything about this. 

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6 Answers

  • Anonymous
    5 months ago
    Favourite answer

    You are confusing flow RATE with pressure. Imagine if you will you are blowing up a beach ball using a skinny straw as the connection.  You will eventually get it full and firm.

    Compare that to using no straw and just blowing it up with your mouth.  It gets filled faster to full and firm.  

    Full & firm is pressure

    so rate does not matter, it just takes longer.

    It is not BOOM FIRM. The actual pressure to the house is controlled by the water utility on the road shut off your house never receives more pressure than the pipes can handle or the WATER UTILITY is on the hook for that...for every house where the pipes blew. Tank is seen as a pipe.

  • Anonymous
    5 months ago

    This is a CRAZY looking setup! 

    Do you have a T&P valve in the tank? 

    I don't know what all that mess of plumbing is.  Flexible connections to a permanently mounted water heater is by a lazy nitwit who can't properly cut and install pipe! 

    I'd get a licensed plumber to clean up that calamity! 

    Your photo of the valve is poor.

  • 5 months ago

    the pressure relief valve on a water heater should NOT open overnight.  if it does, it indicates there is something seriously wrong with the water heater, so it would need to be turned off and examined by someone with experience ... handyman or plumber, take your pick.  -- grampa

  • Barry
    Lv 6
    5 months ago

    It's a safety valve. They are tested by rotating. They then return to the closed position. They contain a spring of a set value that allows water to discharge if the pressure exceeds that value.

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  • Edwena
    Lv 7
    5 months ago

    The valve with red handle is probably the inlet water valve. Open the valve completely.  What controls the amount of water entering the heater is the amount you are using at the lavatory to brush your teeth.  You have a faucet on the lavatory that you adjust for the amount of water you need.  The valve with the red handle should be full open so that it gives you all it can.   Now, on you heater, you also have a pressure relief valve that is screwed directly into the side of the hot water tank.  And there might be some piping that would carry that discharge away from the tank.  That line does not have any valves, restrictions or anything that would interrupt the emergency discharge of steam from the tank.  I don't see the pressure relief valve in the photo. 

  • Anonymous
    5 months ago

    Water heaters have pressure relief valves.  Call a professional plumber if you are in doubt.

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