lutful... of ideasPremiumReviews:
reply to TA63
Re: How to determine GPF of existing toilet?
said by TA63:In Canada, those were 13 Liter models - a standard value in those days. Converts to 13Lx.26G/L=3.38G
I have a ~20 year old American Standard toilet that I suspect is not a thrifty unit.