Hello,
I have a 18,000 gallon pool and a 360 degree raised spa with spill over that share a single pump. Even when I run my pump at 100% (3450 rpm - 56 GPM) all the sides of my spa do not spill over. This is with the valve open 80% to the spa and 20% to the pool main body.
Would the Francis equation be valid here? Based on this equation I would need 67 GPM just to have the spa functioning properly which is way more than my pump can handle. The pump is also dual purposed to circulate my pool main body.
I have:
My questions are:
I have a 18,000 gallon pool and a 360 degree raised spa with spill over that share a single pump. Even when I run my pump at 100% (3450 rpm - 56 GPM) all the sides of my spa do not spill over. This is with the valve open 80% to the spa and 20% to the pool main body.
Would the Francis equation be valid here? Based on this equation I would need 67 GPM just to have the spa functioning properly which is way more than my pump can handle. The pump is also dual purposed to circulate my pool main body.
I have:
- Pentair Intelliflo-XF 3HP variable peed pump
- Spa has 42 LF of negative edge with 360 degree spillover
- Spa has a single 2" return
My questions are:
- How much flow is required to return to the spa to get 1/8" head spill over on all sides?
- Do I need to increase the size of my pump or add an additional one just for the spa?
- Should I be concerned about circulation in my pool main body?