1. Must have an elongated toilet not round.
2. BOTTOM OF SEAT MUST BE FLAT. if it's concave it will press on the Bidet.
3. You will also want some spacers to put on the bottom of the seat to raise it a bit where the Bidet boosts the seat in the back.
4. Purchase the T adapter below for additional pressure control... You'll be glad you did!
Luxe Metal T-adapter with Shut-off Valve, 3-way Tee Connector, Chrome Finish, for Luxe Neo Bidets https://www.amazon.com/dp/B00FPYIK6M/ref=cm_sw_r_sms_apa_i_hOuDEbYCHH5FN
See video for additional info.