Cured in Place Pipe (CIPP) silicate based drain patch repairs can be used to seal both displaced joints and open joints, cracking and root intrusions. They can also effectively be used to seal or cap off redundant spurs to seal leakage or rat infestations. TBL only use systems that comply with The Water Research Centre’s (WRc’s) long-term external hydrostatic water test for patch relinings. All silicate patch repairs installations are guaranteed for 10 Years as standard, and have a life expectancy of in excess of 50 years.