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A flush toilet (also known as a flushing toilet, water closet (WC) – see also toilet names) is a toilet that disposes of human waste (principally urine and feces) by using the force of water to flush it through a drainpipe to another location for treatment, either nearby or at a communal facility, thus maintaining a separation between humans and their waste. Flush toilets can be designed for sitting (in which case they are also called "Western" toilets) or for squatting, in the case of squat toilets. Most modern sewage treatment systems are also designed to process specially designed toilet paper. The opposite of a flush toilet is a dry toilet, which uses no water for flushing.
Flush toilets are a type of plumbing fixture and usually incorporate an "S", "U", "J", or "P" shaped bend called a trap that causes water to collect in the toilet bowl to hold the waste and act as a seal against noxious sewer gases. Most flush toilets are connected to a sewerage system that conveys waste to a sewage treatment plant; where this is not available, a septic tank or composting system may be used. When a toilet is flushed, the wastewater flows into a septic tank, or is conveyed to a treatment plant.Associated devices are urinals, which dispose of male urine, and bidets, which use water to cleanse the anus, perineum, and genitals after using the toilet.

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  1. S

    Replacing Toilet flush valve

    Hi I'm trying to replace a bottom entry toilet flush valve - but having problems with tight access and in particular having problems loosening the bolt to get rid of the plastic that remains of the existing valve - see photo attached. I don't seem to have enough room to get spanner or wrenches...
  2. G

    Flush valve replacement. What make is this?

    Hi everyone. Being driven mad by a leaking toilet. 2 in fact!! It’s not the fill valve over filling to the overflow so assume it’s the flush valve. Anyone know what make this is? The fill valve says WDI so guess the flush might be the same? If it is, is there a compatible valve I can fit in the...
    • Gem1983
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    • america flush flush valve make replacement usa valve
    • Replies: 1
    • Forum: USA
  3. Scott_D

    Can anyone identify this flush valve?

  4. P

    Toilet cistern

    My toilet system cistern has a fault and throws off the button connection when someone tries to flush I cannot find a direct replacement will any part fit the cistern as long as I replace the button and the flush valve.
  5. Dan the man

    Ideal Standard Flush Valve ~ not getting enough water

    Replaced like for like flush valve in Ideal Standard cistern, but do not seem to get more than half filled, giving insufficient water for flushing, even with float (OK) at maximum. As existing valve was already fitted when renting the property have no idea whether it was correct for the cistern...
    • Dan the man
    • Thread
    • america enough flush flush valve getting ideal standard usa valve water
    • Replies: 8
    • Forum: USA
  6. T

    Grohe flush valve issue

    I have replaced the sealing washer to a Grohe Adagio flushvalve (42137) as water was constantly leaking from the concealed cistern. It now is holding the water fine but there is a problem with the flush itself, which was not a problem previously. Flushing requires two or three presses (of the...
  7. M

    Flush valve for 50mm OD flush pipe?

    Does anyone know of a decent flush valve to fit the Ideal Standard SPACE cistern, that is better than the piece of carp fitted as OE please? It has to fit onto the specific sized flush pipe which has an outside diameter of 50mm. Many thanks.
    • Mrflibble
    • Thread
    • flush flush valve pipe valve
    • Replies: 5
    • Forum: Ireland
  8. M

    Replacing this flush valve...

    Hi guys. I hope you are well. Does anyone know what size hole it is for this button connecton? Actually, what I am trying to say is can this be replaced with a fluidmaster? Thanks
    • mutley racers
    • Thread
    • america flush flush valve replacing usa valve
    • Replies: 9
    • Forum: USA
  9. C

    Dual Flush Valve Fittings

    I'm in the process of trying to replace a leaking flush valve with a Flomasta Dual flush Fill valve kit. The problem I've got is trying to get the flush pipe connected into the base of the valve. The existing flush pipe is marginally too small, but might be OK with a suitable gasket but I'm not...
    • cam777
    • Thread
    • america dual dual flush fittings flush flush valve usa valve
    • Replies: 1
    • Forum: USA
  10. Plumbase Spares

    Fluidmaster: Airgap Launch & the Issue of Blue Water Back Flow

    Fluidmaster recently released their new range of flush valves – the Airgap 6000 series. Designed and manufactured in the UK Fluidmaster’s new range is an essential for plumbers who install, repair, or conduct maintenance on toilets and is the only adjustable flush valve on the market today that...
    • Plumbase Spares
    • Thread
    • airgap flush valve america flow fluidmaster flush valve issue usa water
    • Replies: 0
    • Forum: USA
  11. A

    Mansfeild flush valve seal wont seal

    SO, I have done about 30 of these and they all have the same problem... the old seal had become so conformed and imbedded in the base that the seal was so great that you would break the handle trying to flush. So its time to replace, the new seal is straight and flat and not conformed at all and...
    • Alex Collins
    • Thread
    • america flush flush valve seal usa valve
    • Replies: 1
    • Forum: USA
  12. D

    Identify flush valve

    Hi, would anyone be able to identify the make/model of this dual flush valve? It has no identifying numbers on it at all, however the separate fill unit has some numbers that might help someone in the know. It would be greatly appreciated, thanks
  13. Roverspete

    Toilet Flush valve brand.

    Hi All, Sorry being really lazy today, has anyone got a clue which brand makes this Flush Valve and fill valve please? Customer could only say it was made by WRAS lol If not it will be Viva’ed up new Friday. Thanks in advance. Pete
  14. M

    Urinal flush valve help?

    hi guys. Currently stood in front of a wall hung urinal that slightly over fills on flush. It has a p trap rather than a bottle would this make any difference to flow rate? I can’t seem to adjust the flush valve. It’s not a cistermiser it’s just a constant fill and then at a level the flush...
  15. P

    Pneumatic flush valve failing

    Hi all, I've got a problem with a Gerberit pneumatic dual flush valve. It has two buttons on the actuator plate, when pressed individually they do nothing, you now need to press them both at the same time in order to get it to flush. The toilet was installed around 5 years ago with no problems...
  16. J

    Help with putting dual flush valve back together :/

    Hi Folks, A have-a-go-hero here. I had a leaky toilet and cleaned up the rubber washer. Annoyingly I didn't take a photo of the (amstd fastparts) valve parts on removing and I'm definitely doing something wrong on the re-assembly. Can anyone point me in the right direction of a photo or...
  17. K

    Leaking side entry flush valve

    Hi. Looking for some hopefully very simply advice. I needed to replace a side entry flush valve on an enclosed toilet. I have installed the new flush valve but am having problems connecting it to the mains water supply pipe. The flush valve is 1/2" and pipe is threaded plastic. The mains supply...
  18. U

    Grohe Adagio — flush valve leakage problem

    My WC is a Grohe adagio side entry concealed cistern. This is operated by a push-button air bellows. Recently water continued to spill into the pan after a flush. The water level in the cistern shuts-off at the correct level. I replaced the Grohe DAL discharge piston. The problem remained...
  19. B

    Dudley vantage flush valve problem

    Concealed cistern, this one has pan fan and is operated by IR button if that makes any difference. The usual problem of letting by into pan, we are in a hard water area and things do get scaled up. I have replaced the niagara dual pneumatic flush valve yet still on occasion the valve will stick...
  20. T

    Gerebit Flush Valve too short, any ideas how how to make the button sit higher?

    I've bought a replacement flush valve for (Geberit 282.350.KD.1 Flush Valve) as the last one fell to pieces, it works perfectly but the top down button is about 2 inches too short to sit in the hole on the cistern lid. Is there an easy way to get it to sit higher? You can reach it if you have...
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