When looking into building a new pool make sure your potential builder is using all Schedule 40 rigid (hard) pipe or better, like Schedule 80, for all of the plumbing and fittings. Flexible PVC pipe is more susceptible to damage and an even bigger risk of termites eating through the pipe. If this occurs, it could cause air to enter the system and cause the pool pump to lose prime and cavitate or burn the motor up which can be a costly replacement. Also, these plumbing lines are underground and usually under concrete decking that would need to be torn out to make the repair.
If you see rolls of the flex pipe pictured below on your project, demand that your builder immediately remove this and replace it with rigid pipe.
In addition, you want to make sure you are using a minimum of 2″ diameter pipe for all lines. This will get maximum GPM (gallons per minute) for great filtration, heating and disinfection to achieve a quicker turnover time. Six hours is recommended and required for commercial or community pools.
If your builder is using a pipe smaller than 2″ in diameter, in addition to circulation inadequacy, this can cause back pressure on the lines which then causes back pressure on the pump motor, ultimately resulting in shortened motor life.
Plumbing is very important so please verify the type and size of piping being used.
Example of flex pipe to avoid.