The three toilet types selected for our study were a dual flush volume high efficiency gravity flow toilet (HET) with selectable flush volumes of either ~3.9 or ~5.3 liters per flush (Lpf), a dual flush volume pressure-assisted toilet (PAT) of either ~4.2 or ~5.1 Lpf, and a commercial type flushometer
(FOM) toilet of ~5.5 Lpf.
In Section 1417(a), as amended, the general prohibitions on the use of lead pipes, solder, and flux do not apply to "(A) pipes, pipe fittings, plumbing fittings, or fixtures, including backflow preventers, that are used exclusively for nonpotable services such as manufacturing, industrial processing, irrigation, outdoor watering or any other uses where the water is not anticipated to be used for human consumption; or (B) toilets, bidets, urinals, fill valves, flushometer
valves, tub fillers, shower valves, service saddles, or water distribution main gate valves that are two inches in diameter or larger."
These pressure-assist toilets have an inner airtight flushometer
tank that is pressurized after the flush as the tank refills (air is compressed at the top of the tank).
One of the more popular valves, the Sloan Flushometer
, works by equalizing pressures in the chambers above and below the diaphragm.
This dual filter ring allows for the use of the company's Dual Filtered Diaphragm Kit[R] in older Royal[R] Flushometer
If the custodians stopped spending money on jeeps and their wives, they might have some money for a flushometer
or for a ballast for a fluorescent light.
A third factor to consider is the amount of water required by flushometer
toilets generally flushed with 4.5 gallons.
Models that flush at 1.28 gpf or less for flushometer
valve toilets, per EPA's draft specification, and 0.5 gpf or less for WaterSense-labeled urinals could save significant volumes."
packages, by the nature of the equipment, is slightly more expensive than the city's $240 residential rebate.
The Crown piston flushometer
line includes sensor and manually operated urinal models flushing at 0.125 or 0.25 gpf.