Technicians will lower the pools water level for the models that are required to do so. The existing light will be pulled through and repulled and/or replaced as required pending the service requested. For liner installations or the repull of existing lights, they are not warrantied or guaranteed by Aqua-Blue. Aqua-Blue will not be responsible for any line blockages, light failure and/or conduitor or niche leaks. All light pulls do require the original installation to have been installed with conduits.