Water Reducing In Toilet

[Jennykenny]

For some reason or other the water in our upstairs toilet is slightly reducing below the normal level. This, in itself is not a problem as it flushes fine, but it leaves a fairly noticeable lime scale ring round the bowl. But as the ring is above the waterline, none of the usual cleaners can reach above the water.
Any thoughts??

[factor-fiction]

Can you adjust the ballcock (i they still have them) in the cistern?

[murraymints]

Top up bowl manually ...pour in cleaner leave overnight. flush next day...

[Baldric]

How will that ^^^ help the water level in the toilet bowl ff?

[murraymints]

Don't think the water level is a point in question ...Just how to clean residual water line..from original level..thereafter it won't matter ...

[woofgang]

use thick liquid toilet cleaner to dissolve the lime ring. My loos water levels tend to sink when the weather is bad, especially windy, I assumed it was moving air in the sewers putting suction on the pipes

[Old_Jim]

The water level is set by the geometry of the U bend. The water is being syphoned out, either because there's a partial blockage further down the soil pipe or you've got strong winds blowing over the top of the vent. Check the nearest manhole cover and get help if it's full.

The limescale was there already but disguised by the water. Washing soda and a scrubbing brush will shift it.

[Maydup]

A partial blockage in the sewer is causing the reduction in the water level. You need to address it before it gets worse.

[gingejbee]

Washing soda is not the stuff to use...it's alkaline. You need a strongly acid toilet cleaner (containing hydrochloric or phosphoric acid) to do the job.

[gingejbee]

...and I'm sure that the lower water level is down to the windy weather recently..it's very usual for this to happen in windy conditions.

[Jennykenny]

Thanks to all. Bit worried about the blockage.

[nazia08]

Adjust the ballcock inside the tank. Move it up and down until you get the desired height.

[jomifl]

Nazia, the height of the ballcock will not have any effect on the water level in the toilet bowl.

[jomifl]

Bleach based toilet cleaners are alkaline and will only add to the lime scale. You need a thick limescale remover, there are many brands available.

[malagabob]

As Old Jim has commented.There is something syphoning the water over the bend.Possibly high winds, More likely (thats if there are no cracks in the pan) there is some material stuck over the bend acting as a syphon bridge. Water will travel up and over do to capillary action.

[zebo]

If your worried that the cleaner wont be able to act on the limescale. dampen some kitchen role or a j-cloth and stick it to the offending area, then carefully apply the cleaner to the cloth, keeps the cleaner in contact with the stain.