Swimming pools can develop cracks in the concrete that lies beneath the plaster finish, due to settling, ground shifting or erosion. Simple hairline cracks in the finish may not involve a leak and can, usually, be easily repaired. However, a crack that is structural in nature and is under stress cannot be simply glued in place or plastered over, as the forces involved will continue to pull the crack apart. Such cracks must be stabilized in order to prevent the crack from widening and causing ongoing leak problems.
As for our Pool, we’ve open up the Quotation from specialist in doing such job but since the Quot is expensive, Maintenance Dept has been given the responsibilities to resolve the issues. To replace the pool tile, we remove the old mud far enough back so that the new tile will not stick out.
They have used “3M 5200 Marine Sealant/Adhesive”. This stuff sticks to everything, stays elastic, stays waterproof, doesn’t care about thermal expansion or anything else. It patches cracks and bonds tiles that nothing else will. We will monitor the outcome and result of this issues.