New pool owner trying to understand test strip reading

[Pas_pool]

There is also a procedure for your HP to adjust Delta T to ensure proper flow...Did the builder do that? What RPM did they say would give you 30GPM.
But you may not have the ports...did they install them? Temperature Port Kit (# STK0096)
See Page 13.

https://www.aquacal.com/wp-content/uploads/manuals/landingpage/air_source_installer_hp9/en-us/Content/Resources/CURRENT/LTP0114.pdf

This was my pool builders response when I sent him what you said:

“I did not install one of those. I’m not sure if there’s one in the Heat Pump or not I’ve never actually seen one of those before on all of the pools I’ve ever worked on and I sent it to a friend of mine to see if he’s ever seen one, he said he’s never seen one either.“

 

[PoolStored]

Just ask him, "My heat pump has a minimum flow of 30GPM. I would think that is important to protect my heater. How do I know when I'm moving 30GPM? What RPM will give me at least 30 gpm?"

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[Pas_pool]

Just ask him, "My heat pump has a minimum flow of 30GPM. I would think that is important to protect my heater. How do I know when I'm moving 30GPM? What RPM will give me at least 30 gpm?"

Post

My PB said he can do a flow meter. Not sure what that is?

 

[PoolStored]

I put one on mine. Just cause heaters are expensive.

 

[Pas_pool]

I put one on mine. Just cause heaters are expensive.

He is getting back to me with a price. But he did say that he has the same exact set up as me on his pool and he runs his pump at 2200rpm 24/7

 

[Pas_pool]

He is getting back to me with a price. But he did say that he has the same exact set up as me on his pool and he runs his pump at 2200rpm 24/7

I wish the pump manual would just say what gpm you run at each rpms…

 

[Pas_pool]

I put one on mine. Just cause heaters are expensive.

I found this in the manual for my pump. To be honest, I don’t know how to read this graph. Is the bottom gallons per minute?

No idea what the vertical axis means.

 

[ajw22]

I wish the pump manual would just say what gpm you run at each rpms…

RPMs needed to deliver a GPM vary based on how dirty your filter is and what other restrictions there are in your plumbing. It is not a set speed.

Pumps are usually choked down using GPM and you will get more flow at the high end using RPM.

 

[Pas_pool]

RPMs needed to deliver a GPM vary based on how dirty your filter is and what other restrictions there are in your plumbing. It is not a set speed.

Pumps are usually choked down using GPM and you will get more flow at the high end using RPM.

Gotcha. Thanks. Just trying to gauge what RPMs are right for my heat pump.

 

[ajw22]

Gotcha. Thanks. Just trying to gauge what RPMs are right for my heat pump.

Try 2400

 

[Pas_pool]

Regarding muriatic acid. How do you all measure it? I don’t want to get any of that anywhere near me. I use very tall thick rubber gloves but I have been just eye balling it on feel off of what a gallon feels like. Any advice?

 

[TinFoilHat]

Use a measuring cup. One that has cups/pints and ounces on it - no glass. One gallon is 128 oz. Safety glasses if you're paranoid. Gloves are not needed. If a drop gets on you then dunk in the pool.

 

[PoolStored]

Use eye protection. If you get acid on hour hand, just dunk it.

 

[Pas_pool]

Use a measuring cup. One that has cups/pints and ounces on it - no glass. One gallon is 128 oz. Safety glasses if you're paranoid. Gloves are not needed. If a drop gets on you then dunk in the pool.

Thanks

 

[ajw22]

I live dangerously. I eyeball it.

32 oz is about 1/4 gallon. 64 oz is 1/2 gallon. I add it to the pool and test in 30 minutes and see how I did.

I uncap the bottle standing at the edge of the pool, lower it to the water, and tip it to slowly pour, then cap it. Little risk of the MA going anyplace other than the water.

 

[Pas_pool]

Use eye protection. If you get acid on hour hand, just dunk it.

Thanks

I live dangerously. I eyeball it.

32 oz is about 1/4 gallon. 64 oz is 1/2 gallon. I add it to the pool and test in 30 minutes and see how I did.

I uncap the bottle standing at the edge of the pool, lower it to the water, and tip it to slowly pour, then cap it. Little risk of the MA going anyplace other than the water.

yeah that's how I’ve been doing it too so far. I should go out and test soon to see how I did

 

[Pas_pool]

Try 2400

I haven’t even turned the heat pump on yet. How would I know what works. Will it simply not run if too low? Or will something get damaged?

 

[ajw22]

Will it simply not run if too low?

Yes

Or will something get damaged?

No. It has enough internal protection that it will give errors if not enough flow.

 

[Pas_pool]

Yes

No. It has enough internal protection that it will give errors if not enough flow.

So it sounds like if I don’t get a flow meter installed when I turn it on I can try 2200 rpms and see if that works. And if it shows errors bump it up to 2400 or so.

My PB said he has the same exact set up and he runs his pump at 2200rpms 24/7 as well. So I am sure that will work

 

[Newdude]

So it sounds like if I don’t get a flow meter installed when I turn it on I can try 2200 rpms and see if that works. And if it shows errors bump it up to 2400 or so.

I had a heat pump for 8.5 years and never knew my flow. I speak RPM and not GPM.

Just like the SWG, start low and increase RPM 100 at a time and when the HP turns on, thats the flow it needs. Your flow will be restricted slightly as thr filter gets dirty so add 100 RPMs and thats the speed you need to run for the heater.

My PB said he has the same exact set up and he runs his pump at 2200rpms 24/7 as well. So I am sure that will work

Footage to the equipment matters, and so does pool to pad elevation. The general set up can be the same and also very different.