How to figure out whether/how to do a water exchange?

Abnaxis

Well-known member
Jun 28, 2021
80
Indiana
Pool Size
6500
Surface
Fiberglass
Chlorine
Salt Water Generator
That link seems broken. "There is no further text for this page."

I have read this
I have also read this

I was wanting to do something similar to what JoyfulNoise documented in that thread, but I don't know how I can get flow rate info on my pump or if I'm making life too complicated doing the exchange
 

mknauss

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May 3, 2014
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Laughlin, NV
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Pentair Intellichlor IC-40
Sorry about the link, you have read it you say.

You want to use a sump pump, not your pool pump.

Have you gone through the calculation to see if you should drain from the surface or bottom of the pool?
 

Abnaxis

Well-known member
Jun 28, 2021
80
Indiana
Pool Size
6500
Surface
Fiberglass
Chlorine
Salt Water Generator
I don't care if my current pump is damaged if i mess up, it's about to be replaced anyway.

Why is draining to waste ok ( listed as an option in the article) but not exchanging to waste?

Haven't done calculations yet
 

mknauss

Mod Squad
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May 3, 2014
47,275
Laughlin, NV
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The issue with the pool pump is losing prime. Also flow rate you can get make up water at. You can modify as you like, we just give you the process that protects equipment and people.
 

Abnaxis

Well-known member
Jun 28, 2021
80
Indiana
Pool Size
6500
Surface
Fiberglass
Chlorine
Salt Water Generator
Regardless of what pump I used, i think my first step will be troubleshooting the softener. 1000 CH is unacceptable coming from a softener
 

Abnaxis

Well-known member
Jun 28, 2021
80
Indiana
Pool Size
6500
Surface
Fiberglass
Chlorine
Salt Water Generator
Just to make sure--the dropsfor the calcium test are supposed to be much, much smaller than the others, right? I make sure to wipe the tip between drops, but they're still quite little
 

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mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
47,275
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Just to make sure--the dropsfor the calcium test are supposed to be much, much smaller than the others, right? I make sure to wipe the tip between drops, but they're still quite little
No. The drops should be the same size. Be careful to not put any pressure on the bottle unless needed to initiate the drop to form.
 

Abnaxis

Well-known member
Jun 28, 2021
80
Indiana
Pool Size
6500
Surface
Fiberglass
Chlorine
Salt Water Generator
No. The drops should be the same size. Be careful to not put any pressure on the bottle unless needed to initiate the drop to form.
Not putting any pressure will not initiate a drop. Putting even the slightest bit of pressure makes a very small drop immediately fall. I have not found any amount of pressure that does not result in many small drops.

I think I bought some spare reagent with the kit; I will check and see if that bottle behaves differently
 

mknauss

Mod Squad
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May 3, 2014
47,275
Laughlin, NV
Pool Size
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I would clean another dropper tip and try it. Or just clean the one you have. The dropper tips come out of the bottle.
 

Abnaxis

Well-known member
Jun 28, 2021
80
Indiana
Pool Size
6500
Surface
Fiberglass
Chlorine
Salt Water Generator
So yeah if I swap the tips for R0007 and R0012 I get 200-225 ppm instead for my fill water. Seems more reasonable? But still doesn't seem like the softener is working...
 

revitup

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Nov 30, 2019
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I was under the impression that droplet size in determined by the tip shape. As in more blunt for bigger droplets.

“There are two factors that contribute to the drop size of the dropper tip. The first being the external size and shape of the tip surface, where the drop is being formed. The second factor is the coefficient of friction of the product being dispensed. The higher the coefficient, the greater the drop size. For controlled dropper tips, drop sizes are often measured, and specified, in µL.
The viscosity of the product being dispensed largely determines the orifice size. This also determines the rate at which the drop is formed on the dropper, as well as the ease or difficulty to expel the liquid from the tip.

I thought so. I don’t think all of the tips in these Taylor test kits are interchangeable.
 
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