The recommended flow rate for a pool circulation system depends on several factors, such as the size of the pool, the type and size of the pump, and the type and length of the plumbing. In general, the flow rate should be sufficient to ensure that all the water in the pool is circulated and filtered at least once every 8 to 12 hours.
For most residential pools, a flow rate of 30 to 50 gallons per minute (GPM) is sufficient, while commercial or larger pools may require a higher flow rate. It’s important to note that a higher flow rate does not necessarily mean better filtration, as a very high flow rate can actually decrease the efficiency of the filtration system and increase energy consumption.
To determine the appropriate flow rate for your pool, you should consult with a professional pool contractor or engineer who can assess your pool’s specific needs and design an efficient circulation system.