Spa Seat Cavity Drain Layout for Stagnant Water Removal
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Solution Overview
Problem
Existing spa designs with removable seat inserts suffer from stagnant water zones that lead to algae, biofilm, and bacteria growth due to insufficient water circulation.
Innovation Solution
A spa drain system is integrated into the shell, with drains located in the cavities behind the seat inserts to actively circulate water and inhibit growth by drawing fresh, treated water into these stagnant areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If removable seat inserts are used in spa cavities, then ease of repair and adaptability are improved, but water circulation is insufficient leading to algae and biofilm growth
Solution Approach 1:
The drain system is segmented into multiple independent drain assemblies, with each cavity having its own dedicated drain. This segmentation allows each drain to effectively circulate water in its specific zone behind seat inserts, preventing stagnant water formation in isolated areas while maintaining the modular nature of the spa system.
Solution Approach 2:
The drain assemblies act as intermediary components between the cavity spaces and the main circulation system. They mediate water flow by drawing water from stagnant zones behind seat inserts and directing it to the pump for filtration and redistribution, thereby eliminating harmful stagnation without requiring direct modification of the seat inserts themselves.
2Ease of operation
If seat inserts are installed in spa cavities, then hydrotherapy functionality is improved, but stagnant water zones are created behind the inserts
Solution Approach 1:
The drain assemblies introduce a new dimensional aspect to water circulation by accessing the previously unreachable space behind seat inserts. The drains are positioned to draw water from this hidden dimension, creating a three-dimensional circulation pattern that eliminates stagnant zones while preserving the functional hydrotherapy jets in front of the seats.
Solution Approach 2:
The drain system enables the spa cavity to self-circulate water without requiring external intervention or complex modifications to the seat inserts. The drains automatically draw water from stagnant zones and return it to the circulation system, allowing the structure to service itself and maintain hygiene independently.
3Device complexity
If traditional drain systems are used, then device complexity is reduced, but water circulation in cavity spaces is insufficient
Solution Approach 1:
Rather than using a single complex centralized drain system, the invention segments the drainage function into multiple simple, identical drain assemblies distributed throughout the spa. Each drain is a straightforward component that handles its local cavity, collectively achieving comprehensive water circulation without requiring complex coordination or control mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively prevents and removes biofilm and algae buildup by ensuring continuous water circulation and disinfection, maintaining spa cleanliness and hygiene.
Implementation Method 1
a suction fitting associated with each recess for effecting a flow of water through the space and out of the shell through the suction fitting
Data Source
AI summary
A spa includes a shell having at least one cavity, the spa shell being configured to hold a volume of water, at seat insert having a plurality of hydrotherapy jets, the seat insert being received in the at least one cavity and defining a space between the seat insert and the shell, and a drain associated with the at least one cavity for removing water from the space between the seat insert and the shell.