Cornets77
New Member
Hello Everyone,
Looking for some advice from the collective. I'm a home DIY'er and have been building out my dream garage. I recently picked up a Toto high efficiency concealed urinal flush valve on eBay for a steal at $200. It is 0.125 GPF and the supply line connection of the unit is 3/4" NPT. The house is on a well system and pressure at the tank is 30psi at the minimum. I plan to get water from a nearby sink I installed in the same area that is supplied by 1/2" PexA (hot and cold). The sink was installed before I even thought of a urinal otherwise I would have gone bigger to provide an appropriate supply line for the flushometer.
Can I combine the two 1/2" lines (cold/hot) to a 1" pex line before transitioning to the NPT connection on the flushometer to get the volume I need for the unit to work or am I ignoring some physics here.
Alternatively, after searching this site I read a post from someone in a similar position as me that used a small bladder accumulator connected to the flushometer with 3/4" pipe and a check valve in the supply line before the tee where they are connected.
Any thoughts? Thank you in advance!
Looking for some advice from the collective. I'm a home DIY'er and have been building out my dream garage. I recently picked up a Toto high efficiency concealed urinal flush valve on eBay for a steal at $200. It is 0.125 GPF and the supply line connection of the unit is 3/4" NPT. The house is on a well system and pressure at the tank is 30psi at the minimum. I plan to get water from a nearby sink I installed in the same area that is supplied by 1/2" PexA (hot and cold). The sink was installed before I even thought of a urinal otherwise I would have gone bigger to provide an appropriate supply line for the flushometer.
Can I combine the two 1/2" lines (cold/hot) to a 1" pex line before transitioning to the NPT connection on the flushometer to get the volume I need for the unit to work or am I ignoring some physics here.
Alternatively, after searching this site I read a post from someone in a similar position as me that used a small bladder accumulator connected to the flushometer with 3/4" pipe and a check valve in the supply line before the tee where they are connected.
Any thoughts? Thank you in advance!