Channel Drain Water Stop for Pool Plaster Seepage
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Solution Overview
Problem
Larger, elongated channel sumps in swimming pools are prone to plaster cracks where they meet the pool surface, allowing water to seep into the surrounding plaster and supporting walls, causing damage.
Innovation Solution
A channel sump drain with an elongated channel and multiple drain ports, surrounded by a water stop trough that collects and traps seeping water, preventing it from migrating into the plaster and supporting walls, and is secured with anchoring points and plaster to maintain functionality and prevent further intrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If larger, elongated channel sumps are used to comply with safety regulations, then anti-entrapment performance is improved, but the likelihood of plaster cracks and water infiltration increases
Solution Approach 1:
A waterproof membrane is introduced as an intermediary barrier between the sump and the plaster. The membrane extends from the sump into the plaster, creating a sealed transition zone that prevents water from penetrating through cracks in the plaster while maintaining the sump's drainage function and anti-entrapment compliance.
2Productivity
If the sump interface with plaster is enlarged to accommodate elongated channel design, then drainage capacity is improved, but water seepage into supporting walls increases
Solution Approach 1:
The waterproof membrane serves as a mediator that allows the enlarged sump-plaster interface to function for drainage while blocking the harmful water seepage path. The membrane creates a hydrophobic barrier that directs water into the sump rather than allowing it to penetrate the plaster and reach supporting walls.
Data Source
AI summary
A channel drain with a water stop is adapted for handling pool water in a swimming pool having a plastered surface. The channel drain, preferably a sump drain includes an elongated channel having a drain port and an opening for receiving pool water. A water stop abutting and substantially encircling the opening is formed into a trough for retaining and collecting the pool water. The drain is configured for installation in a pool with the water stop buried in the plastered surface, such that pool water seeping between the opening and the plaster is trapped by the trough, preventing the pool water from intruding beyond the plastered surface.