Pump to pool distance

[Bosley]

Was originally thinking about having my equipment pad beside the pool but now thinking about putting it beside the house. The distance for the plumbing lines would be about 45'. The way I see it is i only have to dig 1 trench for the PVC instead of 1 for gas & 1 for power. Never mind the savings in gas & electrical. 6/4 TECK Cable ain't cheap!

So any concerns running a 1.5 HP 2 speed pump that distance?

Cheers

 

[Texas Splash]

I don't. My line is just under that and no problems with almost the same pump size (2" PVC). But for the guys like @JamesW or @mas985 , can you confirm what size PVC will be in that run? Also, any significant elevation change from pool to pad?

 

[Bosley]

Pool will be not even a foot lower than the equipment pad and will be running 2" PVC.

 

[JamesW]

Best practices for plumbing are to keep the suction below 6 ft/sec and the return below 8 ft/sec.

Pipe size........6ft/sec............8ft/sec
1.5".................38 gpm............51 gpm
2.0".................63 gpm............84 gpm
2.5".................90 gpm..........119 gpm
3.0................138 gpm..........184 gpm

In my opinion, a variable speed pump would be better than a two speed pump.

The cost difference is not that much. The variable speed pump might even have a rebate available from the local utility.

The plumbing distance really doesn't matter too much as long as the plumbing is big enough.

A 1.5 hp pump is oversized for a single 2" suction. If you have 2 suction lines, it's ok.

I would suggest that if you want a two speed pump, you get a 1 hp instead of a 1.5 hp.

If you want a 1.5 hp pump on a single suction line, I would recommend 2.5" pvc.

What exact pump are you considering?

 

[elwood58]

We wound up making a decision to put our equipment out by the pool to reduce the noise inside the house.

 

[Bosley]

Appreciate the info. I already have the pump so that can't be changed out now. I can run 2.5" pvc no problem.

 

[Bosley]

We wound up making a decision to put our equipment out by the pool to reduce the noise inside the house.

Our pad will be against the garage so that's not an issue. Running gas & power 10' will be much cheaper than running it 60' to the opposite side of the pool. this way i just build the pool with the return closest to the garage. Will be cheaper and easier.

 

[JamesW]

If you're going to have a single suction, I would do 2.5". The return can be 2".

 

[JamesW]

For your situation, I think that about 15 to 20 gpm would be sufficient when the heater is off and about 40 gpm gpm when the heater is on.

So, the pump is a bit oversized for the pool.

One issue with putting the pump next to the house is the noise.

Depending on which model pump you get, you're probably going to get enough head loss that you will probably not exceed 65 gpm by much.

You could probably use 2" suction and be ok, but a conservative design would indicate 2.5" pvc, but mostly because the pump is oversized.

 

[Bosley]

The pump I have is the Hayward Turbo Flo 2. The reason I went with a 1.5hp pump is that on my last pool I seemed to not have enough suction when vacuuming. As you can see...If i put the pump beside the garage, close to the bar....the electrical & gas will be easy. The AC for the house is already there making noise. If i put it on the corner of the deck...its long run for material but more out of the way.

 

[JamesW]

That's not a particularly high performance pump. So, you would probably be ok with 2" pvc assuming only 45 feet length with only a few 90s.

 

[jimmythegreek]

That pump is fine. If you can get a smaller pump and a robot you will never need the vaccum again

 

[Bosley]

well after coming home and measuring and reviewing with my wife....looks like i am renting a trencher to put the equipment pad beside the pool. She also wants me to run a 100 ft trench to put power in the shed. lol