I am looking for some accurate information on pump sizing. Just built a pool and I have two issues.
1)Nobody can ACCURATELY tell me what is the most efficient size pump for my pool right now
2)Nobody can tell me what would be the BEST choice for a pump when I add solar heating. I am THINKING a Variable Speed OR TWO-SPEED pump just off the top of my head.
In addition to the two sketches below, I will try and accurately describe what I have and what I hope to accomplish. Having never owned a pool, I’m sure I’m going to miss something important, so please be patient. We had a retaining wall built on part of a hill to give us more room for a pool. This area is ROUHLY 38’ x 80’. The retaining wall itself is ABOUT 80” tall and sit’s on roughly a 3:1 slope. Our equipment/pad sits OUTSIDE the retaining wall area and is BELOW the pools water line. The solar panels will also sit outside the pool area and will be BELOW the pools water-line. The retaining wall was built a while ago and the pool was finished and filled 6 weeks ago. Located in So. Cal (Anaheim). I would say the pool gets the sun from 7:00 A.M. until about 5-6:00 PM when the neighbor’s tree starts to cast a shadow. The proposed area for the solar panels would get the same amount of sun.
15 x 50 Rectangular Shape (Shelf area not calculated)
4’ to 8’ deep – (Shelf area not calculated) - (symmetrical for the most part)
TWO Skimmers – Each Skimmer connected to two drains in pool. Pipes to pump are 2 ½”.
Only 4 returns back to pool (print/drawing reads 6. Maybe 1” for each return?) Talking to PB now
Deep Heating/Floor heating 3 outlets on pool bottom – I’m going to SAY 2 ½” pipe. Size unsure
1 dedicated line for Vacuum – I THINK its 1 ½”
Equipment – All Jandy (Current)
Heater = LXi
Pump/Mtr. = Stealth/.75hp
Filter = CL580
SWCG = JANDY PLC1400
From the Skimmer on the END, (closest to pump) I would say it’s a distance of 25’ feet to the pump and is 2 ½” pipe. The Two drains below the skimmer would add another 9-10 feet of pipe.
From the Skimmer on the SIDE, I would say it’s about 44 feet to the pump. The drains in the deep end add about another 20-22 feet of to the CENTER POINT (TEE) for the two drains and another 4 feet on each side of that for EACH drain. The distance for ONE DRAIN (deep end) to the pump is APPROX 69 feet. PUMP>DRAIN (44’)>TEE(21’)>DRAIN(4’)
There are two drains going of TEE – See pic.
The Vacuum has about 48’-50’ of pipe (1 ½”?) from the pool to the pump.
As mentioned, we have 4 returns. Size unknown but I think from our pictures it’s 1” to 1 ½” pipe – probably 1”
From the pump it would be 44’ to the first return, another 34’ to the second return, and then another 14’ to the third return (The end return being 94’ from pump. All three of these returns would be on the same line.
The other side of pool has the 4th return and it’s roughly 43’ to the pump. I’ll have to check the pics, but it probably “T’s” at the end of the pool. One side of the TEE feeding the three returns, the other side feeding only one return.
The difficulty I have is what effect my pump has (or doesn’t have) with it being BELOW the water line. If you can view the second pic I have attached, it’s the on the OUTSIDE of the pool area looking at the equipment pad. (First pic is an OVERHEAD view) Also, although not unusual, my solar panels WILL be BELOW my pump (equipment pad). I have no choice but to ask the experts here for advice. It’s my fault the solar panels are an afterthought. I have the room. I will have the panels (only) installed probably this week with pipes going to the equipment area.
My question is this: What would be the most logical/economical pump. I have the opportunity to do this the right way, right now. I don’t want adequate, I want efficiency – even at a little extra cost. My goal is to EXTEND our swim season and keep the pool at a comfortable temp starting in April and hoping to get into October…. I going to say my electric is ABOUT .15 cents per KWh.
Is my pump efficient /strong enough?
Variable speed pump?
Anyone care to take a crak at this?