|
Post by dvg on Jan 16, 2009 10:42:05 GMT -5
Where did you guys get your TDS meters? I want to test some of the different types of water I'm using. There is a thread posted below this one, where some of you got yours off of eBay, but that listing is no longer in service.
|
|
|
Post by hackerberry on Jan 16, 2009 11:57:56 GMT -5
dvg,
I got mine from Walmart. Check the RV accessories department. They us that TDS meter to check their water source when in the road, i guess.
hb
|
|
|
Post by lloyd on Jan 16, 2009 17:12:33 GMT -5
|
|
|
Post by lenynero on Jan 24, 2009 21:05:18 GMT -5
Ebay aswell.. very cheap and have used it with my filtration unit that was also recommended here on the OCPS forum.... 0 ppm dissolved salts from tap water WOOT!!!!
Leny ;-)
|
|
|
Post by brian on Jan 25, 2009 8:07:48 GMT -5
Richmond Hill? Should be about a hundred. Maybe the electrode needs cleaning with CLR or something.. I can test water samples for anyone interested but you'll need to figure out the cheapest way to ship me a sample of about 50 mL!
|
|
|
Post by lenynero on Jan 25, 2009 8:41:19 GMT -5
Hi Brian,
It's 164ppm without the filtration unit. It's 0 ppm with the filtration unit.
Leny
|
|
|
Post by brian on Jan 25, 2009 9:46:03 GMT -5
ok I got it now.
|
|
|
Post by lloyd on Jan 25, 2009 18:20:19 GMT -5
Which filtration unit is that, Leny?
|
|
|
Post by lenynero on Jan 25, 2009 21:13:48 GMT -5
|
|
|
Post by lloyd on Jan 25, 2009 22:17:07 GMT -5
That's amazing. I notice there are two bottles of chemicals. What are they for? If my distiller ever blows up I'm going to get one of these. Is this basically a reverse osmosis unit?
|
|
|
Post by lenynero on Jan 26, 2009 13:05:39 GMT -5
I think the bottles are too adjust PH. I have my own bottles of stuff to do that and testers aswell. I don't know anything about reverse osmosis but the inside of this filter is full tiny crystals that don;t seem to dissolve.. hmm maybe they attracted stuff out of the water??? anyone have an idea how it works?
Leny
|
|
|
Post by hackerberry on Jan 26, 2009 14:05:20 GMT -5
Correct Leny, those 2 bottles adjust the PH but only for aquarium use. The plants wouldn't like it coz they get slimy. Still an awesome filtration system. I found out that a lot of aquarium and reptile supplies are still the cheapest options for some horticulture requirements.
hb
|
|
|
Post by brian on Jan 26, 2009 15:49:43 GMT -5
Sound like ion exchange resins. They could be regenerated if only the manufacturer would give out the procedure. Just keep on testing each batch of water as you are, to find out their capacity!
|
|
|
Post by lloyd on Jan 26, 2009 17:57:24 GMT -5
I thought exchange resins had to "exchange". So the water would have something in it. And something would make the TDS higher than zero.
|
|
|
Post by brian on Jan 26, 2009 18:23:45 GMT -5
Chloride, sulphate and bicarbonate are replaced by hydroxide so pH goes up. Na, K, Ca and Mg are replaced by H+ so pH goes back down. OH- plus H+ turns into water. Presto, neutral deionized water. Different from a softener where Ca and Mg are just replaced by Na. But still, is it cheaper to buy and replace cartridges to deionize tap water rather than just buy RO water?
|
|