OT:flushing water heater

Discussion in 'Off Topic Archive' started by Dream Jobbed 2.0, Nov 2, 2016.

  1. Dream Jobbed 2.0

    Dream Jobbed 2.0 Formerly DiacosArmy

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    Hello world experts of the boneyard. The water heater in the house we just bought has been "knocking" quite a bit. During the inspection the dude used the term "probably near the end of its useful life." I'm thinking I'm gonna flush it and bite the bullet to replace it come tax return time. Anyone ever do this? Online says it runs about a 100 bucks which isn't awful but also doesn't seem terribly tough. I'd hate to try it and screw up though. Not the e handiest when it comes to this stuff.
     
  2. Fishy

    Fishy Puncher of Throats

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    If it's old and if you're not particularly handy, spend the $150.
     
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  3. Dove

    Dove Vance comin'

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    Its not difficult. But I can't explain it, either.

    Do you see a faucet amongst the boiler mechanisms and pipes?
     
  4. CL82

    CL82 It's going to be ok - calm down and enjoy the ride

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    Flush your water heater? I don't see how you'd even fit it in your toilet.
     
  5. dogpause

    dogpause

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    Water heaters don't vibrate, there are no large moving parts. The vibration OTOH, from whatever its source, could cause it to fail prematurely.

    Check the shutoff valves as someone alluded to. Make sure they're fully open. Or, trying closing them slightly to reduce the water pressure.

    As for DIY, I have a rule that if you have to ask for help here, you probably shouldn't attempt it. This applies to everything. :)
     
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  6. mauconnfan

    mauconnfan

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    Will the real "water heater expert" please stand up..it's dogpause.
     
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  7. boog204

    boog204

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    I tried to "fix" my hot water heater this summer to get a little extra time out of it... Three hours later I had a new water heater and a really wet laundry room. Pay someone to mess with it.
     
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  8. prankster

    prankster Twister Member

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    LMGTFY

     
  9. Dream Jobbed 2.0

    Dream Jobbed 2.0 Formerly DiacosArmy

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    I DID GOOGLE IT
     
  10. UConnStats

    UConnStats

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    Oh, so you're not a visionary?
     
  11. Danzz

    Danzz

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    All I know about hot water heaters is that when they start to give you trouble buy a new one.
     
  12. NJHusky

    NJHusky

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    Not sure what you are trying to accomplish? Flushing a heater might remove any sediment that is stuck in he bottom but it's not going to change any knocking. As someone else said heaters don't have moving parrs that knock. Any knocking is probably from pipes that aren't properly secured

    Also if you think your heater is about to fail change it before it does. Usually they start dripping slowly at first but they can go all at once. In which case your basement is a mess because it will invariably happens when you aren't home and the ruptured heater keeps trying to fill up but never will

    Next time I change a heater I'm adding a sensor and a shutoff.
     
  13. Fishy

    Fishy Puncher of Throats

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    If you have a lot of sediment built up, your water heater will knock - it's water and steam bubbling up through the sediment.
     
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  14. boba

    boba Somewhere around Barstow

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    Ayup, this just happened to us, fortunately during a bathroom remodel. The sediment is not going to flush easily either as it probably solidified into large blocks. It will be mostly calcium carbonates so you may need to use an "acid" solution in an attempt to dissolve them before flushing. Otherwise they will just just stay in the tank and your knocking will continue.

    In the end you really should bite the bullet and replace it. It's coming up on the holidays so you may be able to negotiate something as plumbers want that extra cash for the holidaze too...