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    steel99deer's Avatar
    steel99deer Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Feb 28, 2008, 06:34 AM
    Toilet flushing but not used
    My upstairs toilet flushes every half hour or so. Water company increased water pressure and said this may happen with older toilets and that we may need pressure reducer valve. I have one just wondering if the top screw needs to go up to reduce or down to reduce.
    450donn's Avatar
    450donn Posts: 1,821, Reputation: 239
    Ultra Member
    		  
    #2

    Feb 28, 2008, 07:26 AM
    Sounds like a leak in the flush valve allowing water to leak past and into the tank. New flush valves are cheap and easy to replace.
    JL FANATIC's Avatar
    JL FANATIC Posts: 40, Reputation: 7
    Junior Member
    		  
    #3

    Feb 28, 2008, 07:46 AM
    Flush valve-fill valve that will do it.
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #4

    Feb 28, 2008, 07:55 AM
    I agree leaking flush valve.

    Easy way to check flush valve.

    1. Remove tank top.
    2. Hold down float until water overflows into overflow pipe.
    3. Turn off stop valve underneath toilet.
    4. Wait 30 minutes.
    5. Check water level. If water level is below top of overflow pipe, flush valve is leaking.
    6. Replace tank top. Turn on stop valve.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #5

    Feb 28, 2008, 10:11 PM
    Take you tank lid off, flush the toilet and allow to refill the tank. Observe the overflow tub and water line, does the water level slowly keep rising and eventually overflows into the tube? If so replace the ballcock completely. If not tell us what you observed, could take a few minutes of watching.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #6

    Mar 1, 2008, 06:15 AM
    Quote Originally Posted by steel99deer
    My upstairs toilet flushes every half hour or so. Water company increased water pressure and said this may happen with older toilets and that we may need pressure reducer valve. I have one just wondering if the top screw needs to go up to reduce or down to reduce.
    Everybody focuses on the ball cock. What's all that extra pressure doing to the rest of the system? First things first. Let's drop the water pressure down to a acceptable level and go from there. Over pressuring your water system puts a strain on everything. Your pipes, your faucet cartridges, Toilet ballcocks if the pressure's strong enough to push past the seat and it will also open the T & P valve on your water heater. Call your water company and ask them what the pressure is in the main feeding your house. 45PSI is the normal house pressure. Up to 55 acceptable but if you have any more then that I would a PRV valve at once. Then if there's any other problems we can work on those. Regards, Tom
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