Toilets sometimes need multiple flushes

[mrb1972]

Hi,

We moved into a new build a few months back now, one thing we noticed is that we sometimes we need to flush the toilets multiple times to clear, this doesn't seem to relate to the contents of the toilet (could be just a bit of tissue), also it's not isolated to one toilet.

We approached the developer who said this was due to the having to use smaller cisterns as there are new regulations of only 110L per person of water usage, hence reduced flush power.

Does anyone know if that is true? In theory I agree but sometimes we only need to flush once and it's fine, surely if it was a power issue it would always need multiple flushes?

Thanks

 

[centralheatking]

I would have a look at the water level inside the cisterns, lift lid, maybe you can make the water level a bit higher by tweaking the float level. If not get back to builder all toilets must perform properly, by power they mean weight/volume of water used to evacuate the toilet pan. centralheatking....its 6 litres per flush ! not 110 thats over 1/10 tonne of water per flush

 

[StevePlumb20]

I'm no expert but this doesnt sound right. How much water is in the cistern when you flush? I assume its a flush valve and not a syphon? Is the cistern properly emptying?

 

[Chuck]

....its 6 litres per flush ! not 110 thats over 1/10 tonne of water per flush

The 110 litre figure refers to 'per person per day'. Building Regs Section G2, specifies a minimum of 125 litres/person/day but includes an option for planning permission restrictions to reduce this to 110 litres/person/day.

 

[mrb1972]

I would have a look at the water level inside the cisterns, lift lid, maybe you can make the water level a bit higher by tweaking the float level. If not get back to builder all toilets must perform properly, by power they mean weight/volume of water used to evacuate the toilet pan. centralheatking....its 6 litres per flush ! not 110 thats over 1/10 tonne of water per flush

Thanks, I will check the water levels first, the developers just don't seem to want to take responsibility for anything unless they have no choice
[automerge]1579090769[/automerge]

The 110 litre figure refers to 'per person per day'. Building Regs G2, IIRC.

Yeah that's what he developer is quoting at me and the reason for the poor flush power - i just don't trust developers

 

[SimonG]

The flush valves were probably not set up correctly at installation. It's what happens when house builders pay a pittance for trades.

Get the housebuilder back.

 

[Chuck]

Yeah that's what he developer is quoting at me and the reason for the poor flush power - i just don't trust developers

Chapter and verse it is then:

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/509352/160321_Part_G_FAQ.pdf

 

[centralheatking]

The 110 litre figure refers to 'per person per day'. Building Regs Section G2, specifies a minimum of 125 litres/person/day but includes an option for planning permission restrictions to reduce this to 110 litres/person/day.

I see now, anyway the reality is that UK use 224 litre per person per day ..last figures I saw...and water regs do not cover showers or power showers which can use more than a bath at full tilt.
centralheatking

 

[snowhead]

The joke about reduced WC flush volume over the years is that people tend to flush more than once to clear.
It probably would have been better to leave the volume as it was.