Lasses Dream Build

[Lasse]

Once I used the same test cuvette and cap the numbers became consistent

Since day 1 - of the same reason. I also fill the cuvettes with RODI for storage

When I use checkers - I always use 713 - it gave me a better and more steady result than both P and PO4 ULR. Now I have Marin Master and the only PO4 measurements you can do on it is the ULR variants

Sincerely Lasse

 

[areefer01]

Since day 1 - of the same reason. I also fill the cuvettes with RODI for storage

When I use checkers - I always use 713 - it gave me a better and more steady result than both P and PO4 ULR. Now I have Marin Master and the only PO4 measurements you can do on it is the ULR variants

Sincerely Lasse

Ah, I need to learn to read better, sorry. I missed the Tropic Marin part.

 

[Lasse]

Ah, I need to learn to read better, sorry. I missed the Tropic Marin part.

No its Hanna Marine Master - HI 97115

Sincerely Lasse

 

[areefer01]

No its Hanna Marine Master - HI 97115

Sincerely Lasse

I should have stopped while I was ahead :D Ty.

 

[Lasse]

I keep on with my measurements and without adding any vodka to the filter. Even if I saw more bacteria in the filter - it seems like the GFO working better without being drunk - its decreasing. However I add measurements with Salifert reagens and Hanna Marin Master and it seems promising

Today I measured a rise with Hanna´s reagents but still - a down going trend with Salifert as the reagent

Sincerely Lasse

 

[Lasse]

Today I found out (again!!!) that its very important that you do the same routine every time when you do tests. I did a test with Hanna´s own reagent and get 0.23 First test with salifert reagent come up with 0.198. second test (salifert) 0.162. I decided to do 2 more with Salifert and they show 0.151 and 0.174 - average 0.171. A second run with Hanna´s own reagent show up 0.22. Both methods indicate an increase of PO4

​

Maybe Salifert is not so consistent as I thought (or I´m not so skilled as I thought) but since the price per test is almost 3 times lower you can do several runs and get an average value

Sincerely Lasse

 

[Freenow54]

Today I found out (again!!!) that its very important that you do the same routine every time when you do tests. I did a test with Hanna´s own reagent and get 0.23 First test with salifert reagent come up with 0.198. second test (salifert) 0.162. I decided to do 2 more with Salifert and they show 0.151 and 0.174 - average 0.171. A second run with Hanna´s own reagent show up 0.22. Both methods indicate an increase of PO4

​

Maybe Salifert is not so consistent as I thought (or I´m not so skilled as I thought) but since the price per test is almost 3 times lower you can do several runs and get an average value

Sincerely Lasse

The thing with salifert which I like better than API is the syringe . Since its flat there is no doubt . API if I knew where the plunger should sit for sure has no air trapped under the plunger. It is clear in Salifert instructions not to try to remove the air trapped under the plunger . They say its accounted for . Would not want a medical test done by them. I was going to get Hanna back just after Covid the pivotal era but the solutions were not available. So I have not tried since. I wonder about the accuracy of any of them. It seems your proving that here

 

[Lasse]

The thing with salifert which I like better than API is the syringe . Since its flat there is no doubt . API if I knew where the plunger should sit for sure has no air trapped under the plunger. It is clear in Salifert instructions not to try to remove the air trapped under the plunger . They say its accounted for . Would not want a medical test done by them. I was going to get Hanna back just after Covid the pivotal era but the solutions were not available. So I have not tried since. I wonder about the accuracy of any of them. It seems your proving that here

I only use saliferts PO4 reagents to my Hanna Marine Master - does the analyse in my Hanna Marine Master (a multipurpose "checker")

I use salifert for Ca, Mg and alkalinity - Yes the plunger start on zero ml and when you haw draw the flat side of the plunger up to 1 ml mark - you have exactly 1 ml in your syringe

Sincerely Lasse

 

[Lasse]

Its good when you are retired - you have to train your brain a lot so you don't become retarded

One of this brain training sessions include doing things more complicated than other people do because some characteristics become a bit outdated as the number of years of life increases. One of these is vision. Who the hell at my age can count the scales on a Salifert syringe with certainty - and then each scale means 5 ppm with the calcium test

Today - there is a lot of cheep scales that goes down to two or sometimes three decimals in gram, To test my scale - 2 decimals - I filled one Salifert syringe with first 1 ml RODI water and after that with 1 ml reagens (with a lot of light I can se the 1 ml mark) They both show 1 gram. - It means 1 gram - 1 ml.

After this - I prepare a sample of 4 ml aquarium water and 2 scopes of Salifert reagens. In this way - the scale will be 2.5 ppm each 0.01 g (ml) - press tare

Fill syringe to 1 ml mark

All in

Refill the syringe and add slowly. Now you have to lift up ans shake your sample often - be careful set it back there is shows the same figure as before the shaking. Wait around 15 sec

When you get close to expected value - shake more often (but not the scale!) Wait around 15 sec

Finnally I decided that this was the end

Now I had to do a new table and also add mg/L - in this case ppm*1.023. And I read

If your eyes is good enough to decide which scale line that is directly under the plunge - you can use the table too - in this case mg = ml

Here is the scale without me playing Picasso

Sincerely Lasse

 

[EnterName]

Its good when you are retired - you have to train your brain a lot so you don't become retarded

One of this brain training sessions include doing things more complicated than other people do because some characteristics become a bit outdated as the number of years of life increases. One of these is vision. Who the hell at my age can count the scales on a Salifert syringe with certainty - and then each scale means 5 ppm with the calcium test

Today - there is a lot of cheep scales that goes down to two or sometimes three decimals in gram, To test my scale - 2 decimals - I filled one Salifert syringe with first 1 ml RODI water and after that with 1 ml reagens (with a lot of light I can se the 1 ml mark) They both show 1 gram. - It means 1 gram - 1 ml.

After this - I prepare a sample of 4 ml aquarium water and 2 scopes of Salifert reagens. In this way - the scale will be 2.5 ppm each 0.01 g (ml) - press tare

Fill syringe to 1 ml mark

All in

Refill the syringe and add slowly. Now you have to lift up ans shake your sample often - be careful set it back there is shows the same figure as before the shaking. Wait around 15 sec

When you get close to expected value - shake more often (but not the scale!) Wait around 15 sec

Finnally I decided that this was the end

Now I had to do a new table and also add mg/L - in this case ppm*1.023. And I read

If your eyes is good enough to decide which scale line that is directly under the plunge - you can use the table too - in this case mg = ml

Here is the scale without me playing Picasso

Sincerely Lasse

Work smarter, not harder

You have mastered it

 

[Freenow54]

Its good when you are retired - you have to train your brain a lot so you don't become retarded

One of this brain training sessions include doing things more complicated than other people do because some characteristics become a bit outdated as the number of years of life increases. One of these is vision. Who the hell at my age can count the scales on a Salifert syringe with certainty - and then each scale means 5 ppm with the calcium test

Today - there is a lot of cheep scales that goes down to two or sometimes three decimals in gram, To test my scale - 2 decimals - I filled one Salifert syringe with first 1 ml RODI water and after that with 1 ml reagens (with a lot of light I can se the 1 ml mark) They both show 1 gram. - It means 1 gram - 1 ml.

After this - I prepare a sample of 4 ml aquarium water and 2 scopes of Salifert reagens. In this way - the scale will be 2.5 ppm each 0.01 g (ml) - press tare

Fill syringe to 1 ml mark

All in

Refill the syringe and add slowly. Now you have to lift up ans shake your sample often - be careful set it back there is shows the same figure as before the shaking. Wait around 15 sec

When you get close to expected value - shake more often (but not the scale!) Wait around 15 sec

Finnally I decided that this was the end

Now I had to do a new table and also add mg/L - in this case ppm*1.023. And I read

If your eyes is good enough to decide which scale line that is directly under the plunge - you can use the table too - in this case mg = ml

Here is the scale without me playing Picasso

Sincerely Lasse

I applaud your work but honestly even though the metric system has been here for 40 years its still a challenge for certain conversions. Linear measurement is not one of them. But flipping around weights when every solution has a different density is . Please let me catch up

 

[Freenow54]

Its easy until you get part way through post 3529 talking about 4ml of water two scopes of regent and the number 2.5 ppm each 0.01g / ml which I get your comparison from before 1ml equals 1 gram but that ? would you simplify for me ?

 

[Freenow54]

Thanks but finally get it

 

[Lasse]

I did not know the density of the reagent 2 in salifert. Therefore I suck up 1 ml of RODI in my syringe and put it on my scale after taring for the empty syringe. I get 1.00 g (should have get 0.99705 gram but my scale has only 2 decimals - 1.0 gr is good enough. Empty the syringe and filled with 1 ml reagens 2 and got 1.00 gr this time too. Now I know that they where rather alike and that 1 ml of reagens 2 has the weight of 1 gr,

About the conversion table - I have converted ppm with the formula "mg/L = ppm *1,023" there 1.023 is the density of 35 psu saltwater at 25 degree C. Normally when you measure things in the 0-100 ppm range - ppm and mg/L is nearly the same (100 ppm = 102 mg/L but that´s fair enough for me) but when you star to measure things like Ca and Mg in ppm - IMO - it must be multiplied with 1.023

Sincerely Lasse