You might be able to help.

Would you be able to hazard a guess on the % of toilet tanks that are fitted with old style ball cocks versus those fitted with vertical fill valves (Fluidmaster style) installed.

I am looking only at domestic residences.

Many thanks

Martin Maye, February 2009

Thankyou Peccavi.. I am alarmed at that high percentage of 78.4%. Have you a detailed report on findings??

littlejoe, April 2009

Ball valves in domestic premises currently 78.4%

Peccavi, February 2009