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Old 04-17-2012, 02:47 PM   #11
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LaMotte does have a product for brewing purposes called the BrewLab.

http://lamotte.com/brewlab

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Old 04-18-2012, 02:11 AM   #12
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That's a good find but that Brewlab kit isn't very useful. The sulfate tests are too coarse a result and the chloride test strips only go up to 10 ppm.

The only test kits a brewer really needs are the hardness and alkalinity kits. Lamotte kits have a good reputation. I'm not sure if the pH meter is a good one.

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Old 04-18-2012, 02:35 AM   #13
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Is there not some test to check the ppm of sodium in a salt water pool or maybe in an aquarium?

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Old 04-18-2012, 06:42 PM   #14
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The sulfate test included with the LaMotte BrewLab has a comparator in it for measuring the turbidity of your water sample after adding the reagent. It ranges from 0-200ppm, but at very low and very high levels it can be difficult to discern. At over 20ppm and below 200ppm though it is very effective.

There are no chloride test strips in the kit, there is a chlorine test strip. It does range from 0-10ppm and is used simply to insure that all of the chlorine is removed from the water before beginning.

The digital pH pen is a very good model for the price range. There are many digital meters available at even higher costs that aren’t nearly as good. LaMotte does carry more advanced pH meters, but they can sometimes be a bit pricy.

To include a chloride or sodium test in this kit would have greatly increased the price, and these test can be a bit involved compared to the others, so it was decided not to put it in this kit. LaMotte does have tests available for these which are sold separately.

This kit is designed to test your water before you begin to brew and cannot test samples after the process has begun. Most of the tests are based on color changes and so will not be effective after you start brewing. The exception to this is the digital pH pen. It can be used throughout the brewing process and with proper care and maintenance should remain accurate for a long time.

Although not everything that you may want to test for is included in this kit we feel it is the most comprehensive collection aimed at the home brewer available to date. The precision and accuracy of the tests are better then anything you could purchase from a pool supply or aquarium store. I know because we make many of those types of kits also. We have been in business since 1919 and have bought that experience to bear while creating this kit.

We are always looking for feedback, and adjustments to the BrewLab may be made in relation to any information we receive from end users.

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Old 07-21-2012, 08:14 PM   #15
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Please make sure you append the future Brewlab instructions to solve down to the ppm level of each ion in the compound. Other literature you have with the other test kits, particularly for Ca show how to solve for Ca, simple if you're a chemist but most of us need a factor to multiply by :-)

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Old 07-22-2012, 06:16 PM   #16
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Quote:
Originally Posted by Gurnie01 View Post
To include a chloride or sodium test in this kit would have greatly increased the price, and these test can be a bit involved compared to the others, so it was decided not to put it in this kit.
There are quite simple color based (titrimetric) tests for chloride which are not terribly expensive, elaborate or difficult to use, but they do involve mercury salts. Then again the sulfate tests involve barium chloride - another heavy metal which must be disposed of properly. The really difficult one is sodium. The 'practical' approach there is to use an ion selective electrode (very similar to a pH electrode but expensive and very slow to respond) which is beyond what most home brewers would be willing to undertake based on cost alone although many pH meters will display in mV and are thus set up to make the measurement if an electrode is obtained. The other methods for sodium involve very expensive gear (like ICP or AAS) and are clearly out of the question unless the homebrewer has access to a laboratory equipped with one of these machines.
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Old 07-27-2012, 03:51 PM   #17
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