| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. FIXTURE MOUNTING & INSTALLATION | |||
| A1 | Washbasin/sink/bathtub securely mounted to wall/floor; no movement when pushed or loaded (20 kg force) Acceptance: Fixture does not shift under hand pressure, bolts/fasteners tight, no cracks on fixture or mounting surface | Cl. 15.1 — Installation security | OK NC NA HOLD |
| A2 | WC pan properly seated on floor; sealant applied around base to prevent water seepage into subfloor Acceptance: WC bolted to floor, sealant (silicone/tile adhesive) applied around perimeter, cured before use | Cl. 15.2 — WC base sealing | OK NC NA HOLD |
| A3 | Fixture surface is free from chips, cracks, or manufacturing defects; glaze intact and smooth Acceptance: Visual inspection for damage, no chips or cracks, surface glaze uniform, minor wear acceptable | Cl. 15.3 — Physical condition | OK NC NA HOLD |
| B. WATER INLET CONNECTIONS | |||
| B1 | Cold water inlet connected to dedicated cold water line (not mixed with hot water incorrectly routed) Acceptance: Inlet traced to cold water supply, not connected to wrong source, valve operation verified | Cl. 16.1 — Source verification | OK NC NA HOLD |
| B2 | Hot water inlet (if dual inlet) connected to hot water supply; temperature check conducted (40-50°C at outlet) Acceptance: Hot water supply verified, temperature measured at outlet ≥40°C, thermostat valve present if required | Cl. 16.2 — Hot water verification | OK NC NA HOLD |
| B3 | Inlet pipes properly connected; unions/compression fittings tight, no leakage when water turned on Acceptance: Connections tight, tested at operating pressure, zero seepage at union/fitting, dry interface after 5 min | Cl. 16.3 — Connection integrity | OK NC NA HOLD |
| B4 | Isolating valve (stop cock) provided on each inlet line; accessible and operable Acceptance: Stop valve present and accessible, operation tested (ON/OFF smooth), handle/knob not obstructed | Cl. 16.4 — Isolation provision | OK NC NA HOLD |
| C. DRAINAGE OUTLET CONNECTIONS | |||
| C1 | Drainage outlet properly connected to trap or P-bend; pipe diameter ≥32 mm for washbasin, ≥40 mm for bathtub Acceptance: Drain pipe size adequate for fixture type, trap installed immediately after outlet, diameter matches fixture requirement | Cl. 17.1 — Drain sizing | OK NC NA HOLD |
| C2 | P-bend or S-bend trap properly installed; water seal maintained (min. 50 mm seal depth per design) Acceptance: Water seal depth ≥50 mm visually confirmed, trap not siphoned, scent seal present if required | Cl. 17.2 — Trap sealing | OK NC NA HOLD |
| C3 | Drain flows freely; no blockage or backflow observed during flow test Acceptance: Drain empties within 10 seconds, no gurgling or slow drain, no backflow into fixture | Cl. 17.3 — Drainage functionality | OK NC NA HOLD |
| C4 | Overflow provision (if applicable): connected to drain system, not blocked Acceptance: Overflow outlet clear, directed to drain system, not exposed to floor, prevents water damage | Cl. 17.4 — Overflow safety | OK NC NA HOLD |