Toilet pan doesn't clear....

[WaterTight]

Or wouldn't a drop valve be worth a go? Surely a Fluidmaster has to be able to empty a cistern with as much oomph?

 

[Hughieboy]

Or wouldn't a drop valve be worth a go? Surely a Fluidmaster has to be able to empty a cistern with as much oomph?

I think I'll try that idea... Got to be the simplest thing to try first, thanks!

 

[stevetheplumber]

good call watertight