← The Best of Ask This Old House: 44 Common Household Projects · Bathrooms

Installing a Water-saving Toilet

S2 · E4

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Richard replaces an old 3.5 gallons per flush (GPF) toilet with a new, state-of-the-art dual-flushing unit that uses 0.9 GPF for liquids and 1.6 GPF for solids.

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