Constant water flow through cistern. ?

I have a push button cistern, and it's constantly filling with water and flowing into the toilet bowl. The float isn't switching the water flow off, even if I pull the float up as far as it can go. I have also tried turning the valve screw on the pipe under the cistern to slow the water down but still not working. My HA are only doing urgent repairs until further notice so they won't fix it anytime soon. If anyone could help me out I'd be grateful. Thank you. 

5 Answers

  • 1 month ago

    Water is very corrosive so I would suggest you rebuild the toilet tank with new parts. 

  • Anonymous
    1 month ago

    It's the seal in the cistern that's gone.  It's unfortunately a common fault with push-button toilets.  If you're lucky it will "just" be due to an accummulation of scale or some grit and you can clean that off otherwise it's a pain because there's no standard push button loo so you need to figure out your particular model.  

    Here's a guide on what to do which may or may not be exactly what you're looking for:  

    Make yourself a cuppa and read through it carefully and then again for good measure as you investigate your cistern.  

    If you decide to have a go use your phone to photo everything as you go both for you to reference that you've put it together the same way again and to show the HA if there's any dispute.  Save any receipts and ask for your money back, being sure to point out that in non-covid times this would be an urgent repair (and if you're on a meter it's costing you money).  In fact, I'd consider this an urgent repair since you're losing several hundred liters a day and I'm not exaggerating.

    You'll get better help on  than on here if you need more help.  Really though I think you should make a nuissance of yourself and get them to fix it, not because there's any danger of you doing something irreparable but because it really IS urgent and it IS fiddly.  Good luck!

    Send your HA this link:

    It's all about the leaking cisterns in push-button toilets.  The old UK lever toilets had a syphon in the cistern which prevented the cistern from leaking into the pan.  In the long run they were more environmentally friendly.

  • Edwena
    Lv 7
    1 month ago

    You need to replace the float-riser valve mechanics of the commode.  It wears out over a period of many years. Buy a good quality one from the hardware store and install it. You have to drain the tank because the assembly mounts through a hole in the bottom of the tank and attaches to the hose behind the commode that connects to the water supply valve.  It is actually quite easy to do.  

  • 1 month ago

    need photo.  this problem suggests the valve the the float controls needs to be replaced.  it's a DIY task easily done after trip to the home improvement store ... take photos and the salesman will help you find a product that will work.  -- granddad

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  • Barry
    Lv 6
    1 month ago

    Tell the HA it's urgent as it's costing you money in water charges. In the interim isolate the water supply to the cistern and turn it on only when you need to flush. Which is probably only once a day.

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