Bio Bidet bidet seat installation overview
Bio Bidet electric bidet seats install on existing residential toilet bowls. Universal seat mounting fits standard elongated (18.5") and round-front (16.5") bowls. Install time: 30-45 minutes DIY. Requires 110V GFCI-protected outlet within 4 feet of toilet location.
Pre-install requirements
- 110V GFCI-protected outlet within 4 feet of toilet (US bathroom electrical code)
- Cold water supply at toilet (T-connector installation)
- Standard elongated or round-front toilet bowl
- Universal seat mounting (5.5" bolt spread)
Install procedure (30-45 min)
- Remove existing toilet seat (lift hinge caps, unscrew bolts)
- Shut off water at under-toilet shutoff valve
- Flush toilet to release water from tank
- Disconnect supply line from bottom of tank
- Install Bio Bidet T-connector at supply line position
- Reconnect original supply line to T-connector + Bio Bidet supply hose to bidet seat input
- Position Bio Bidet seat on toilet bowl, aligning with mounting bolts
- Insert mounting bolts from above, secure nuts from below
- Plug bidet seat into GFCI outlet
- Restore water at shutoff valve
- Test all functions: wash, dry, heating
- Verify GFCI test/reset functions correctly
Common install mistakes
- No GFCI outlet — code violation in bathrooms
- Wrong supply T-connector size (verify 3/8" or 1/2" to match toilet supply)
- Bolts overtightened (cracks porcelain at mounting boss)
- Bidet seat installed on cracked toilet bowl (replace bowl first)
- Forgetting to verify cold water supply (some homes have hot+cold reversed)