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pool filter sand changes PH?

This is a discussion on pool filter sand changes PH? within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> i have 2 bottles of ph tester and they both test the same......they are kinda old, but i see any expiration or mfg date.the ...

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pool filter sand changes PH?
Old 04-30-2009, 09:10 PM   #31
 
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i have 2 bottles of ph tester and they both test the same......they are kinda old, but i see any expiration or mfg date.the lots are:28A0207 & 28A0607. usually it takes 12 hrs before i see a change in PH. i have tried extensive testing on both substrates. i just set up the same test you recommend also have a third container with some pebbles i had bought at HD. with RO water i havent been doing a high range test. maybe i should give that a try.
i am at a loss if its not the substrate, what could it be? could the PH changes go away with time?
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Old 04-30-2009, 09:41 PM   #32
 
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I was told that the last four numbers of the lot are the month and year that they are manufactured. If this is true, then you are approaching the two year mark, but they should still be fine. You say that you are at a loss if it is not the substrate, and I say that I am at a loss if it is not the water. Lets see what the result of the latest tests are, before trying to do anything else.
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Old 04-30-2009, 09:47 PM   #33
 
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Quote:
Originally Posted by MBilyeu View Post
I was told that the last four numbers of the lot are the month and year that they are manufactured. If this is true, then you are approaching the two year mark, but they should still be fine. You say that you are at a loss if it is not the substrate, and I say that I am at a loss if it is not the water. Lets see what the result of the latest tests are, before trying to do anything else.

im just lost in general.
the RO should be the ideal water.....right?
i did do tests with city water with same results. i also took out a sample of RO water and set it next to the other samples.....maybe its enviromental? i will post my results when i get home tomorrow.
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Old 04-30-2009, 09:50 PM   #34
 
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Well yes the RO SHOULD be ideal water, but if the filters aren't correct for aquarium water, or if the water source has something that we can't test for in it, then RO might not be the answer.


(Wow, run on...)
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Old 05-01-2009, 09:15 AM   #35
 
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I've followed this thread, and it is indeed strange. MBilyeu may be correct that there is something in the water source that is so far undetected. I wonder if anyone else on this forum has had this happen?

I would not use a high-range pH kit, I would use a general one. Don't know what this may mean, but as the pH starts out around 6.4 I wuld use a general range kit.

Have you let a container of the RO water stand without anything in it, just a glass full of the water,and tested it the next day to see if the pH changes?
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Old 05-01-2009, 02:40 PM   #36
 
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Quote:
Originally Posted by Byron View Post
I've followed this thread, and it is indeed strange. MBilyeu may be correct that there is something in the water source that is so far undetected. I wonder if anyone else on this forum has had this happen?

I would not use a high-range pH kit, I would use a general one. Don't know what this may mean, but as the pH starts out around 6.4 I wuld use a general range kit.

Have you let a container of the RO water stand without anything in it, just a glass full of the water,and tested it the next day to see if the pH changes?

He should be using both pH tests because if one maxes out, then you are supposed to use the results from the other. The standard test range is from 6.0-7.6 and the high range test is from 7.4-8.8. API breaks it down like this to be more accurate.
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Old 05-01-2009, 07:50 PM   #37
 
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OK i have been keeping an excel chart of my values.


HOURS POOL FILTER SAND COLORQUARTZ IN PLASTIC COLORQUARTZ IN GLASS HOME DEPOT PEBBLES WATER CONTROL USED GRAVEL FLOURITE ECO-COMPLETE W/FLOURITE
START 6.6 6.6 6.6 6.6 6.6 XX XX XX
12 HRS 7.0 7.4 7.0 7.0 6.6 6.6 6.6 XX
24 HRS 7.0 7.4 7.4 7.0 6.6 7.4 6.5 6.6


here is my progress. the testees are:
pool filter sand- has been rinsed many times
colorquartz in plastic- has been rinsed many times
coloquartz in glass- just in case the plastic tupperware somehow altered the PH
home depot pebbles- generic pebbles rinsed many times
water control- water in tupperware, nothing else
used gravel- gravel I had laying around from a previous aquarium
flourite- extra flourite taken out of my 55g a year ago
eco-complete w/flourite- just took this sample from my 55g

any ph close or at 7.4 was verified with the high range test.

so far flourite seems to be the favorite. cant wait to see how the eco-complete does.

any ideas or comments?

Last edited by iceprizm; 05-01-2009 at 08:00 PM..
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Old 05-01-2009, 08:13 PM   #38
 
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ok here is the chart:


HOURS-- POOL FILTER SAND---- COLORQUARTZ IN PLASTIC-- COLORQUARTZ IN GLASS------- HOME DEPOT PEBBLES------- WATER CONTROL----- USED GRAVEL------ FLOURITE---------ECO-COMPLETE W/FLOURITE
START-------------6.6------------------------------------6.6----------------------------6.6----------------------------6.6---------------------------6.6--------------------xx--------------------XX--------------------XX
12 HRS------------7.0------------------------------------7.4----------------------------7.0----------------------------7.0---------------------------6.6--------------------6.6-------------------6.6-------------------XX
24 HRS------------7.0------------------------------------7.4----------------------------7.4----------------------------7.0---------------------------6.6--------------------7.4-------------------6.5-------------------6.6


anyone know how to copy an excel worksheet so i can post it?
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Old 05-01-2009, 08:35 PM   #39
 
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Wow, well the numbers don't lie. I still say that it is something in the water that the substrates may be bringing out, but that is just a guess and doesn't matter at this point in time. If you still have everything in the containers I would also do a 48 and 72 hour test.

My personal opinion would be to still use the pfs in your tank if that is the look you want. It doesn't alter your pH an incredible amount, so for water changes I think you will be safe. Just make sure to always use the RO water that you used in the test. Not your original water that put you over 8.0. For almost all fish that are bred in captivity, a pH of 7.0 is near perfect. My 30 gallon community tank has some driftwood in it that brings the pH down from 7.2(tap) to 6.6-6.8. I do 25% weekly water change with no ill effects.
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Old 05-01-2009, 10:54 PM   #40
 
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i am going to let the test run thru the wekkend before i decide what to do. i will update my chart every 12 hrs. i would really like to use the CQ, but ill wait and see what the number say. i also gave a sample of CQ and PFS to a friend to run some tests on them. i am interested if a different water source would lead to the same results.
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