Part of the assessment requirement for PWTAG-accredited Swimming Pool Technical Operator Courses is to sketch a schematic of the pool and associated treatment system. In order to help courses delegates complete this exercise, we have provided an example below of a schematic that meets the required standards and have included a few comments for your consideration.
Course delegates are advised to take note of the level of detail and ensure that their submissions are of around the same standard.
- Inlets clearly indicated, showing the distribution of water within the pool.
- Type of surface water draw-off system clearly indicated (deck-level).
- Sump drains included.
- Arrows showing direction of water flow.
- Balance tank correctly drawn.
- Inclusion of main valves.
- Strainer basket and pump set clearly drawn and labelled.
- Coagulant dosing system, includes chemical tank and injection point.
- Monitoring equipment correctly drawn, showing the sample line.
- Disinfection and pH correction correctly drawn and showing injection points and connections from the monitoring equipment.
- Heat exchanger in the correct place.
- Details such as the sample return and chemical injection locations.
- Filter, with main valves shown.
- Sample line origin and coagulant injection points clearly shown.
Overall, this is a good schematic of a pool and associated plant and, importantly, it demonstrates to us that this candidate is familiar with their system.