Without any dismantling

Normally commercial and residential flats bath have 3 or 4 points a normal bath. First we apply vacuum pressure in all P-Trips then open the line cove and pass the super sealer with a constant ratio by vacuum pressure, same method apply on other point after that we repair all P-Trip by super sealer & mixing of cement and check tile grouting after treatment

Note:-

Don’t use or flow the water in subjected area for drying approx 24 to 36 hrs.