I am fitting an Armitage Shanks "Encore" close coupled WC. The cistern only fills to about half full which I estimate to be about 2.5 litres. The line marked inside the cistern near the top is marked 6 litres. Do I have a faulty cut off valve or is this lower amount normal nowadays?
Unfortunately there were no instructions - the cistern came "fully assembled". I realise that I can ring the manufacturer on Monday but was hoping to possibly get an answer before then so as to get the job done. Thanks for all answers everybody.