Sleeves - Proper Size and Planning
The swimming pool designer or contractor will specify the size of the pipes and conduits that they will have passing through the wall and their approximate location.
It is the responsibility of the contractor who is constructing the concrete walls to provide the appropriate size sleeves for the pipes and conduits to pass.
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| Cast in place plastic sleeve with waterstop flange |
This DOES NOT mean that the sleeves are merely one size larger than the pipe or conduit. To properly seal a pipe passing through a sleeve, the proper spacing must be created between the pipe and the sleeve.
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| Mechanical chain link seal inside sleeve cast in concrete wall |
This will allow the proper insertion and expansion of mechanical chain link style seals.
The mechanical seal should be inserted as the pipe is passed through the sleeve during plumbing/electrical installation. This will ensure that the pipe remains centered in the sleeve during back fill and attachment procedures.
Lack of Planning can be costly
Lazy contractors or those that fail to plan ahead will find themselves in a position of trying to locate flexible waterproof sealers or caulks, that can resist the movement of the pipes and building and the hydrostatic pressure from the soils.
Bootlegging the seal with the use of swelling cementitious sealers (that swell in the presence of water), may exert such force, that it crushes or cracks the pipe or conduit. This will result in tremendous costs and excavating to repair. Swelling foam sealers will not resist movement or constant immersion in water.
Paolo Benedetti http://www.AquaticTechnology.com
Aquatic Technology Pool and Spa
International Aquatic Consultant, Watershape Engineering, Expert Witness, Hydraulic Designer, Landscape Design
Office: 408-776-8220
Email: info@aquatictechnology.com
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