couple of odd noises relating to toilet

[wingers]

Hi,

last few days I have been getting a couple of odd noises with my toilet

1) after it has flushed, and just before it is about to fill up cisten again I hear a loud clunk from loft and then it starts filling up as normal - doesn't do it everytime, but most

2) then while it is filling up (and strangely mainly evening/night) I then get an horrendous noise which is very hard to describe, but perhaps sounds like pipe vibrating or air in pipe? if I run cold tap in sink this then lessens for a while and stops completely once cisten refilled

Any thoughts please

 

[Whl4852]

I would check your float valve in the loft. Hope this helps.

 

[wingers]

I would check your float valve in the loft. Hope this helps.

Thanks for reply, can you give me a clue as to where I am looking and what I can do with it - I assume it is in the cold water tank in loft? thanks

 

[Whl4852]

Yes cold water tank. Go up there and locate it, get somebody to flush loo or open the ap, visually inspect it whilst it's operating, if it's having trouble closing down etc, you'll be able to see that. If your not one hundred percent take a photo and post it on here and somebody will help you. Best of luck

 

[wingers]

thanks - will look at weekend when missus is here to flush while I watch

 

[wingers]

Hi,
Had a look this weekend and can't see anything moving in water tank when I flush loo? so am bit confused now

Have attached photos showing water tank suspended from roof in loft (assume this is where I am meant to be looking), and also photos showing inside the water tank

But flushing the toilet and letting it refill does not create any movement in this tank at all - so what is this tank for? or is something more serious wrong

Thanks

 

[Koogatubac]

Can see the pics. Re upload them plz for us to help

 

[wingers]

Can see the pics. Re upload them plz for us to help

pictures re-uploaded

 

[Whl4852]

Well think it might be time for a new tank...

 

[Koogatubac]

The bottom picture is worrying, is it supported by 2 pieces of copper tube bend around?
Should be supported on a well constructed platform ideally made from marine ply.

Could be water hammer or your faulty cold water float valve inside your toilet or on the tank itself.
Thats if your cold water system on your bathroom is supplyed from your CWSC (that cistern in picture)

 

[stevetheplumber]

id change the washer in the wc first although the noise comes from the loft it maybe the washer letting go and causing some hammer

 

[Whl4852]

Get the tank properly supported, will be costly if it falls down!

 

[wingers]

yes it is supported by two piece of copper pipe screwed into roof beams and then stood on a bit of chipboard

when I flush toilet nothing happens in that water tank pictured - so I assume cold water is not being fed from that tank to the bathroom, it just doesn't seem to do anything - it has another pipe leading in from top of hot water tank - perhaps is this for overflow or something

Also the ballcock seems to be bent right down so only a small amount of water in this tank

Very hard for me to explain as simply don't understand what this tank is for

Can anyone describe or show in pictures what I need to be checking in cistern?

Also having been up in loft I am now not sure the bang noise I hear just before cistern refills is coming from there anyway - it could well be coming from pipework under bath -which is where cold water mains pipe comes into house from the ground

 

[Whl4852]

yes it is supported by two piece of copper pipe screwed into roof beams and then stood on a bit of chipboard

when I flush toilet nothing happens in that water tank pictured - so I assume cold water is not being fed from that tank to the bathroom, it just doesn't seem to do anything - it has another pipe leading in from top of hot water tank - perhaps is this for overflow or something

Also the ballcock seems to be bent right down so only a small amount of water in this tank

Very hard for me to explain as simply don't understand what this tank is for

Can anyone describe or show in pictures what I need to be checking in cistern?

Also having been up in loft I am now not sure the bang noise I hear just before cistern refills is coming from there anyway - it could well be coming from pipework under bath -which is where cold water mains pipe comes into house from the ground

The tank is your loft is supplying the hot water storage cylinder only then. I'd get that bath panel off and have looked if everything is clipped properly, if you can get the panel off you will know a bit more. Or maybe get a plumber in to have a look? Good luck

 

[Mike Jackson]

The tank is your loft is supplying the hot water storage cylinder only then. I'd get that bath panel off and have looked if everything is clipped properly, if you can get the panel off you will know a bit more. Or maybe get a plumber in to have a look? Good luck

I don't think it is. If you look behind it there appears to be a fortic cylinder. I wonder if this is the CH header tank.

 

[wingers]

I don't think it is. If you look behind it there appears to be a fortic cylinder. I wonder if this is the CH header tank.

the tank you can see behind is indeed the hot water tank for hot water/central heating

 

[wingers]

The tank is your loft is supplying the hot water storage cylinder only then. I'd get that bath panel off and have looked if everything is clipped properly, if you can get the panel off you will know a bit more. Or maybe get a plumber in to have a look? Good luck

Have taken bath panel off and had a look but can't see any reason for noise I hear and can't hear it with head under bath - but trouble is it doesn't do it everytime, seems more in evening and then I often get the horrible noise like air in pipe which I can only stop noise by running cold tap hard whilst loo is refilling

picture of under bath attached, can see three pipes heading towards bit behind loo/sink - one I assume is cold water supply pipe as very cold and dripping with condensation

 

[wingers]

just a thought - could my noise problem be anything to do with water pressure - as I do notice recently my cold water pressure is a lot higher, so could turning cold water main off a bit help?

 

[stevetheplumber]

FFS Change the washer in the toilet cisten first ITS THE MOST PROBABLE CAUSE AND THE SIMPLEST

 

[wingers]

Change the washer in the toilet cisten first

which washer - some advice as to what I am looking for would help me be able to change it

 

[Whl4852]

I know, I was in two minds really. The more I think about it, the more I agree with you.

 

[wingers]

FFS Change the washer in the toilet cisten first ITS THE MOST PROBABLE CAUSE AND THE SIMPLEST

and as I said "which washer - some advice as to what I am looking for would help me be able to change it" - you the plumber NOT me, hence why I am asking for guidance

 

[PlumbBobBob]

put up a picture of the inside of your toilet cistern and we will be able to tell you

 

[wingers]

put up a picture of the inside of your toilet cistern and we will be able to tell you

 

[Whl4852]

Why don't you just go to screwfix and buy a bottom inlet valve? They'll know what you mean, fairly straightforward to swap over. Good luck