I need some help designing the most efficient pump configuration for the following new pool.
Inground gunite pool capacity 8,700 gallons
Main drain -32" Channel Drain in the floor: 236 GPM at 3.4 fps using a 2" Pvc dedicated pipe to the pump pad. (35')
2 Skimmers - Hayward SP1084 Auto Skim Series Skimmer 2-Inch Pvc dedicated pipe for each to the pump pad. (27' & 56')
Three 2" pvc returns with a dedicated pipe for each to the pump pad. (43', 35', & 60')
One dedicated vacuum line 2-Inch Pvc dedicated pipe for each to the pump pad. (45')
Three Pentair Colorcascade bubblers - 30 Gpm each - 1.5" Pvc to each bubbler. (55', 60', and 65')
Heat Pump heater
The use of the bubblers is intermittent not constant.
Using a 7 hour turnover rate I estimated 21 GPM for the pool.
It would seem either a two speed pump or a single pump with a booster might be indicated but the truth is I don' really know how to do the calcs, particularly the TDH.
Should the bubblers be plumbed individually back to the pad, or is some form of branch piping the best way?