Properly Filling a LaMotte Spin Touch Disk
The
innovative WaterLink® Spin Touch® photometer is the undisputed Ferrari of water
testers. It can do 10 Pool & Spa water Test Factors in 60 seconds! If you
are looking for the top of the line photometer tester look no further. You can
also transfer the test results through their DataMate software and store them
in a cloud online.
As
part of the testing procedure you will need to fill the Spin Disks with the
water sample and incorrectly filling the disks can make the test results
inaccurate. After a bit of practice filling the disks correctly becomes easy
and you will get a spot on test results each time. Since the disks come sealed
with a precise amount of reagent inside each chamber the water sample is the
most important factor when using the Spin Touch and a false reading can only
happen with underfilled disks. It is actually better to overfill than to
underfill the disk.
One
method that I use in training on filling the disks is to use food coloring to
make the water sample darker. You wouldn’t run these disks through the Spin
Touch but rather fill a few disks with water samples with food coloring. After
two or three disks you will be able to visually see the chambers filling with
water from the bottom to the top. I also mark the fill line with a Sharpie so
that you can see exactly where to stop. If you have just purchased the Spin
Touch or are using it in your pool store, try this method and you will see how
easy it is to fill the disk.
When
the syringe is inserted correctly in the disk it should stand up on its own. This
is also an important factor because if you inject the water sample and it leaks
out everywhere you will get an improperly filled disk. If you fill the syringe
up all the way, there should be about 1 cm of water left after properly filling
the 10-Test Disk. If you have more than that left in the syringe you probably
have underfilled the disk. If you have less than that you probably have
overfilled the disk. Again, it is actually pretty easy to do with some
practice.
The
3 Parameter 3 use disks are a little trickier to fill. The area for the water
sample is broken into three separate parts since these disks do just 3 Test
factors and can be used 3 times. So, filling them with a water sample with food
coloring is even more essential. Again, the same principle applies in that overfilling
the disk is better than underfilling the disks. If you are unsure just fill the
disk completely until water drips out. It will be overfilled but should still
give you accurate results vs those disks that are underfilled.
The
Three Disk Spin Disk Series comes in two types of disks.
The
4334-H (501 Series) measures these tests:
Free
Chlorine (Bromine)
Total
Chlorine
pH
(Combined
Chlorine is calculated by Spin Touch®)
The
4335-H (601 Series) measures these tests:
Free
Chlorine (Bromine)
pH
Alkalinity
The
10 test parameter disks come n a variety of configurations.
4328-H
will test for:
Free
Chlorine, Total Chlorine, Bromine, pH, Calcium Hardness, Total Alkalinity,
Cyanuric Acid, Copper, Iron, Salt
4329-H
(the most popular disk) will test for:
Free
Chlorine, Total Chlorine, Bromine, pH, Calcium Hardness, Total Alkalinity,
Cyanuric Acid, Copper, Iron, Salt and Phosphate
4330-H
will test for:
Free
Chlorine, Total Chlorine, Bromine, pH, Calcium Hardness, Total Alkalinity,
Cyanuric Acid, Copper, Iron, Salt and Borate
4331-H
will test for:
pH,
Calcium Hardness, Total Alkalinity, Copper, Iron, Borate, Biguanide, Biguanide
Shock
The
Spin Touch is a must-have photometer if you do advanced water testing in the
field or in your pool store.
Visit my Website: http://www.swimmingpoollearning.com/
YouTube Video Index: http://poolmandave.blogspot.com/2014/03/swimming-pool-tips-reviews-how-to-video.html – A
list of all of my videos.
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