Why is the SAMPLE SIZER measuring tool only good for the Taylor tube?

[Poolweekender]

This is driving me crazy - why would it be that I can't use the sizer with the TF-100 tubes?
Isnt 10 ml the same for both tubes?
thanks...

 

[JoyfulNoise]

Tubes are NOT the same diameter. The volume is correct but the SampleSizer from Taylor DOES NOT work with the TF-100 tube. The correct tube for the SamplerSizer to work is part #9198 from Taylor.

 

[basod]

From what I understand the tool is only designed to work with a specific diameter sample tube that comes with the K2006 kit.
if you just fill the sample vial and use a slight wrist flick action to adjust it down to 10 or 25 ml it's really easy

 

[Poolweekender]

Thanks both...
so it's not like a syringe, it doesn't suck up 10 ml and then you simply dispense it in a vial?
I'm still puzzled...

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Maybe the sizer doesn't fit into the T-100 tubes to dispense the water because the tube diameter is smaller than the Taylor tube?

 

[pabeader]

I decided to go get a condiment bottle. You can just squeeze out as much as you want, even a drop at a time if you want.

 

[Poolweekender]

Great idea, pabeader ... so you fill the bottle directly from the pool and just squeeze the right amount into the vials, love it!

 

[JoyfulNoise]

The sample sizer is just a precisely machined, anodized aluminum "plunger" that is a precise, but slightly smaller fit than the internal diameter of a #9198 sample tube.

You fill the tube up with a random volume of water larger than what you need and then you insert the plunger. Because the shape of the plunger and internal shape of the tube are exactly known, the mating of the two creates an exact volume of excess water inside the tube. Pull the metal plunger out and what's left behind is an exact and reproducible volume of test water. I use mine every time.

25mL Volume -

10mL Volume-

 

[Saturn94]

I thought about getting that sample sizer, but I just can't justify the cost (almost $20!).

 

[LSE08]

Great idea, pabeader ... so you fill the bottle directly from the pool and just squeeze the right amount into the vials, love it!

An empty 6 oz. R-0013 reagent bottle from your TF-100 test kit works as well. Just make sure you mark it accordingly so as to not confuse it with your good R-0013 bottle and pour the wrong one out by accident thinking it contained pool water. Voice of experience here.

 

[JoyfulNoise]

I thought about getting that sample sizer, but I just can't justify the cost (almost $20!).

I use it every single time I make measurements and I never have to squint or guess at the sample volume - same sample size every single time. That alone is worth $20 in my book. The SpeedStir and SampleSizer are "must have" nerd tools IMHO.

(And I think I only paid like $15 a few years back on Amazon....inflation is a killer...)

 

[bmoreswim]

Bought the sample sizer this year after 4 four years without. I really like it.

 

[JoyfulNoise]

Bought the sample sizer this year after 4 four years without. I really like it.

I have been eyeing the 44mL SampleSizer stick too....

 

[jgofnj]

I decided to go get a condiment bottle. You can just squeeze out as much as you want, even a drop at a time if you want.

Did the same thing. Got it at the Dollar store. Came two in a pack for $1.

 

[carlos31820]

I decided to go get a condiment bottle. You can just squeeze out as much as you want, even a drop at a time if you want.

Same here. It works great. I just fill it from my cartridge filter air bleed valve so I can still test the pool water in winter while it's covered.

 

[kfpool]

I use a 20ml syringe. Accurate graduations right on the syringe. I think I paid about $6 for a pack of 10 on amazon

 

[miles267]

Are these things worth it? Right now I'm using a condiment squeeze bottle of pool water and simply filling manually to 10 or 25 mL line of the TF-100 vial.

 

[borjis]

I use a turkey baster from the dollar store.

Reaches down in the deep end about 1 foot under the surface
without having to put my hand in.


Been sampling that way since day one.

 

[tim5055]

For full disclosure I am a happy user of both the Sample Sizer and Speed Stir.....

Now, with that behind me - if you use a "closed" container (condiment bottle, turkey baster or the like) make sure that when you are don you rinse it out, open it up and allow it to dry. There have been a couple of reports over the past couple of years of inaccurate testing that appears to have been caused by contamination in sample containers.

 

[wjr75]

How about someone size up a sampler sizer for the TF-100 so they can sell me one. 20 bucks sounds like a pretty good profit margin

 

[bmoreswim]

Not to overstate what the sample sizer is, but this thing is a real peace of work. A finely honed piece of solid aluminum. Feels like it was designed by a German engineer who was married to an Italian engineer.