I suspect that they just want to keep the cost down and not spend more than necessary.
Pool pump Sizing and Feet of Head - Worried too big a pump
- Thread starter PoolFLPool
- Start date
I suspect that they just want to keep the cost down and not spend more than necessary.
Hey Poolman,
Let me start by saying I suffer from severe anxiety unfortunately so its not unusual for me to want to leap to the worst case scenario when evaluating things just being honest, haha. During the off season, most of the plumbing was completely replaced with PVC from a combo of flex pvc and poly pipe. So when this week the brand new multiport frame and cover began to leak in a strange spot 5 days after install (Top of cover out of mold manufacturing injector location) I was concerned. I thought, could more efficient plumbing have eliminated any air leaks in the old system and thus increased the performance of the pump to the point the pump is too powerful now but perfect for the old plumbing ? While I do realized there is a chance this was a defect in the new multiport, I saw the new sticker said "Rated flow for the multiport is 60 GPM" and I figured I should evaluate and not just assume it was a defective part. Thanks.
- Jul 21, 2013
- 66,884
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Then he should keep the pump that is running fine.
That is what I am trying to understand about wanting to ”fix” a pump that is working.
Nothing special about the OPs pool that thousands of other 1.5HP pumps are handling fine.
Thanks, does it take a 1.5 inch PVC pipe ? Recommendation of a pump ? What about power ? I am only working with 120.
- May 3, 2007
- 18,185
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
I wouldn't do anything. You are selling the house. What are you concerned about? It isn't flow rate that causes problems, it is pressure and that is fine.
- Jul 21, 2013
- 66,884
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
The 120V eliminates the inexpensive Calimar 1.5 HP VS pump.
Pentair SuperFlo VS Variable Speed Pool Pump, 1.5 HP | Leslie's Pool Supplies
Not sure what other 120V VS pumps are available.
Or you can downsize your pump at less cost….
Hayward Super Pool Pump, 115/230V, 1 HP
Attachments
- May 3, 2007
- 18,185
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
If you want to reduce flow rate, just change out the eyeballs to smaller ones. Much cheaper.
You can get a SuperPump VS, but do you really need to replace the pump if it is working well?
www.hayward-pool.com
www.hayward-pool.com
Super Pump VS | Pumps | In Ground Pool Pumps - Hayward Pool Products
Hayward's best-selling Super Pump just got even better. Super Pump VS variable-speed pool pumps are a drop-in upgrade that deliver up to 80% energy cost savings over single-speed models.
www.hayward-pool.com
SP26115VSP | Super Pump VS | Pumps | In Ground Pool Pumps - Hayward Pool Products
The Super Pump VS 115V from Hayward® is the most energy efficient 115-volt variable-speed pump on the market, offering energy savings of up to 80% over ordinary single-speed pumps.
www.hayward-pool.com
Really ? Money has ZERO to do with it ! It's all about just wanting to pass inspection and wanting the next homeowner to have a problem free system. I guess I am a rare breed, I actually care.
- May 3, 2007
- 18,185
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Why wouldn't it pass inspection? Also, why do you think there is a problem?
Exceeding flow rate recommendations is not an issue and won't be flagged by any inspector. They have no idea what the flow rate is nor do they have the ability to measure it.
Replacing the pump is just a waste of money and won't accomplish anything.
Exceeding flow rate recommendations is not an issue and won't be flagged by any inspector. They have no idea what the flow rate is nor do they have the ability to measure it.
Replacing the pump is just a waste of money and won't accomplish anything.
It would not pass inspection with a leak out of the top of the multiport valve right ? It's a decent flow, not a drip. I don't want to replace the pump. I just was trying to understand if the pump was too powerful. I was not too far off in my concern given you indicated that with both suctions running the GPM is about 66 and the Foot head is 53.
Anyway, I am done now that people are starting to pick things apart and get critical. I do thank you however not only for your time but for helping me understand things a little better than I did before although I never will understand where you got the estimates from. Cheers.
- May 3, 2007
- 18,185
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Correct. You need to fix a leak but I was talking about replacing the pump. But the multiport leaking has nothing to do with the size of your pump. That is just a failed o-ring probably due to age.
Also, as mentioned before, there are several ways to reduce flow rates without replacing a pump (e.g. smaller eyeballs, throttling valve, smaller impeller).
There are spreadsheets in my signature that you can use to estimate flow rates. I used the PSI2GPM worksheet as that is the simplest method for the information that you have.
Thank you. It's not age respecfully. I am going on 2 multiports modifications since the plumbing change over the winter. The first brand new multiport (Key assembly only) was changed first and had a loud clicking noise was present as if a pebble was stuck. I then changed the entire multiport (Body and key assembly) and it began leaking in an usual spot 5 days later. Currently, I put the first (Key assembly) back in place on the new body for now and yes it is making the clicking sound again. That said, it's not me overthinking. It's 2 issues that have presented themselves that I deemed worthy to evaluate. Someone on I know questioned whether my pump was perhaps too powerful, hence why I raised the issue about pumps. The pool pad is right next to a basement window, even more the reason to take some time to evaluate.
I commend your conscientiousness.
Unfortunately, yes, it is extremely rare that a homeowner trying to sell their home actually cares about the next guy.
99.999% of the time they do as little as possible and let the next guy worry about it.
I respect that you are trying to do the right thing.
