Do you know the percent of water change?

I did a water change today and thought I'd do a salt check before and
after. Before the change I had a salt level of .13%, after I had .11%.
Bascially doing a little more than a 15% water change out. (13 - 11 = 2, 2
divided by 13 equals .154 or 15.4%) Surprised me. Here I though I was doing
between 20-25%.

So for those of us who don't have perfectly straight walled, flat bottom
ponds who could calculate their water change % in feet (or inches) i.e., 4
ft of pond, drain down 1' equals a 25% change out. Here is another way to
use your salt test measurements. ;o) ~ jan
(Do you know where your water quality is?)

jan, the "divided by 13" comes from your beginning figure of .13? Kewl!

Lee

"~ jan JJsPond.us" wrote in message
s.com...
I did a water change today and thought I'd do a salt check before and
after. Before the change I had a salt level of .13%, after I had .11%.
Bascially doing a little more than a 15% water change out. (13 - 11 = 2, 2
divided by 13 equals .154 or 15.4%) Surprised me. Here I though I was
doing
between 20-25%.

So for those of us who don't have perfectly straight walled, flat bottom
ponds who could calculate their water change % in feet (or inches) i.e., 4
ft of pond, drain down 1' equals a 25% change out. Here is another way to
use your salt test measurements. ;o) ~ jan
(Do you know where your water quality is?)

Glad you liked it. I do wonder how many folks this went "Zoom" over their
heads or felt like, Ponds, Math, Huh? ;o) VBEG ~ jan

jan, the "divided by 13" comes from your beginning figure of .13? Kewl!

Lee

"~ jan JJsPond.us" wrote in message
ws.com...
I did a water change today and thought I'd do a salt check before and
after. Before the change I had a salt level of .13%, after I had .11%.
Bascially doing a little more than a 15% water change out. (13 - 11 = 2, 2
divided by 13 equals .154 or 15.4%) Surprised me. Here I though I was
doing
between 20-25%.

So for those of us who don't have perfectly straight walled, flat bottom
ponds who could calculate their water change % in feet (or inches) i.e., 4
ft of pond, drain down 1' equals a 25% change out. Here is another way to
use your salt test measurements. ;o) ~ jan
(Do you know where your water quality is?)


(Do you know where your water quality is?)

Would the water's ambient salt level make any difference? IOW, if the
ambient level is .02, it would need to be subtracted from the .11, leaving
..09. Therefore, 13-9 = 4/13 = ~31. A 31% water change would have been
closer to what you "thought" it was, instead of 15%. Or am I full of "it"
again? Math was never my forte. I don't know if it would make a difference
or not.

Lee

"~ jan JJsPond.us" wrote in message
s.com...
Glad you liked it. I do wonder how many folks this went "Zoom" over their
heads or felt like, Ponds, Math, Huh? ;o) VBEG ~ jan

jan, the "divided by 13" comes from your beginning figure of .13? Kewl!

Lee

"~ jan JJsPond.us" wrote in message
ws.com...
I did a water change today and thought I'd do a salt check before and
after. Before the change I had a salt level of .13%, after I had .11%.
Bascially doing a little more than a 15% water change out. (13 - 11 =
2, 2
divided by 13 equals .154 or 15.4%) Surprised me. Here I though I was
doing
between 20-25%.

So for those of us who don't have perfectly straight walled, flat
bottom
ponds who could calculate their water change % in feet (or inches)
i.e., 4
ft of pond, drain down 1' equals a 25% change out. Here is another way
to
use your salt test measurements. ;o) ~ jan
(Do you know where your water quality is?)


(Do you know where your water quality is?)

Jan,
If you do not mind I would like to add this concept to the HTH page on
water changes. Maybe start a pond specific section.
Howard

~ jan JJsPond.us wrote:

Glad you liked it. I do wonder how many folks this went "Zoom" over their
heads or felt like, Ponds, Math, Huh? ;o) VBEG ~ jan


jan, the "divided by 13" comes from your beginning figure of .13? Kewl!

Lee

"~ jan JJsPond.us" wrote in message
ews.com...

I did a water change today and thought I'd do a salt check before and
after. Before the change I had a salt level of .13%, after I had .11%.
Bascially doing a little more than a 15% water change out. (13 - 11 = 2, 2
divided by 13 equals .154 or 15.4%) Surprised me. Here I though I was

doing

between 20-25%.

So for those of us who don't have perfectly straight walled, flat bottom
ponds who could calculate their water change % in feet (or inches) i.e., 4
ft of pond, drain down 1' equals a 25% change out. Here is another way to
use your salt test measurements. ;o) ~ jan
(Do you know where your water quality is?)


(Do you know where your water quality is?)


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Don't mind at all. ) ~ jan

On Wed, 02 Jun 2004 10:29:44 -0600, HTH wrote:

Jan,
If you do not mind I would like to add this concept to the HTH page on
water changes. Maybe start a pond specific section.
Howard

~ jan JJsPond.us wrote:

Glad you liked it. I do wonder how many folks this went "Zoom" over their
heads or felt like, Ponds, Math, Huh? ;o) VBEG ~ jan


jan, the "divided by 13" comes from your beginning figure of .13? Kewl!

Lee

"~ jan JJsPond.us" wrote in message
news.com...

I did a water change today and thought I'd do a salt check before and
after. Before the change I had a salt level of .13%, after I had .11%.
Bascially doing a little more than a 15% water change out. (13 - 11 = 2, 2
divided by 13 equals .154 or 15.4%) Surprised me. Here I though I was

doing

between 20-25%.

So for those of us who don't have perfectly straight walled, flat bottom
ponds who could calculate their water change % in feet (or inches) i.e., 4
ft of pond, drain down 1' equals a 25% change out. Here is another way to
use your salt test measurements. ;o) ~ jan
(Do you know where your water quality is?)


(Do you know where your water quality is?)


-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

(Do you know where your water quality is?)

I suppose if the water you're adding in has some salt in it, you may very
well have to take that into account. Good catch, Lee. No detectable ambient
level here, thank goodness, because.....

The math though is throwing me, but I think you're right, take the .02 away
from the after-the-change number, if you don't it wouldn't look like you
took any water at all, would it? Now I'm starting to hear "Zooms" around my
head. ;o) ~ jan

On 2 Jun 2004 07:45:09 -0500, "Lee B." wrote:

Would the water's ambient salt level make any difference? IOW, if the
ambient level is .02, it would need to be subtracted from the .11, leaving
.09. Therefore, 13-9 = 4/13 = ~31. A 31% water change would have been
closer to what you "thought" it was, instead of 15%. Or am I full of "it"
again? Math was never my forte. I don't know if it would make a difference
or not.

Lee

"~ jan JJsPond.us" wrote in message
ws.com...
Glad you liked it. I do wonder how many folks this went "Zoom" over their
heads or felt like, Ponds, Math, Huh? ;o) VBEG ~ jan

jan, the "divided by 13" comes from your beginning figure of .13? Kewl!

Lee

"~ jan JJsPond.us" wrote in message
ws.com...
I did a water change today and thought I'd do a salt check before and
after. Before the change I had a salt level of .13%, after I had .11%.
Bascially doing a little more than a 15% water change out. (13 - 11 =
2, 2
divided by 13 equals .154 or 15.4%) Surprised me. Here I though I was
doing
between 20-25%.

So for those of us who don't have perfectly straight walled, flat
bottom
ponds who could calculate their water change % in feet (or inches)
i.e., 4
ft of pond, drain down 1' equals a 25% change out. Here is another way
to
use your salt test measurements. ;o) ~ jan
(Do you know where your water quality is?)


(Do you know where your water quality is?)


(Do you know where your water quality is?)

Eyeball it..LOL Nothing scientific about it. I have never checked water PH
etc in over 10 years. It is an outdoor pond . Its conditions are dependent
on how much rain or lack of rain we get. If we get plenty of rain ..that in
itself changes the water in the pond. If it is a dry spell in the Summer I
might do a 1/3 water change every other week. I am not going to drive
myself nuts trying to keep the water conditions at a perfect level. My 10
year old Koi are proof that you don't have to go overboard and make allot of
work for yourself with keeping a healthy pond. It is much better to have
fish that are adaptable to varying conditions, outdoor koi and goldfish are
those types of creatures. Very adaptable. IMHO and experience. MIKE

wrote in message ...
Eyeball it..LOL Nothing scientific about it. I have never checked water
PH
etc in over 10 years. It is an outdoor pond . Its conditions are
dependent
on how much rain or lack of rain we get. If we get plenty of rain ..that
in
itself changes the water in the pond. If it is a dry spell in the Summer
I
might do a 1/3 water change every other week. I am not going to drive
myself nuts trying to keep the water conditions at a perfect level. My 10
year old Koi are proof that you don't have to go overboard and make allot
of
work for yourself with keeping a healthy pond. It is much better to have
fish that are adaptable to varying conditions, outdoor koi and goldfish
are
those types of creatures. Very adaptable. IMHO and experience. MIKE

I think you are right with one caveat...I pond in the same manner, build it
and let it take care of itself, but when I built, I over built my filter. I
think if you have a large body of water, properly filtered, it is much more
forgiving then an overstocked, smaller pond.

BV.

I agree....{:O) MIKE
"Benign Vanilla" wrote in message
...

wrote in message ...
Eyeball it..LOL Nothing scientific about it. I have never checked
water
PH
etc in over 10 years. It is an outdoor pond . Its conditions are
dependent
on how much rain or lack of rain we get. If we get plenty of rain
...that
in
itself changes the water in the pond. If it is a dry spell in the
Summer
I
might do a 1/3 water change every other week. I am not going to drive
myself nuts trying to keep the water conditions at a perfect level. My
10
year old Koi are proof that you don't have to go overboard and make
allot
of
work for yourself with keeping a healthy pond. It is much better to
have
fish that are adaptable to varying conditions, outdoor koi and goldfish
are
those types of creatures. Very adaptable. IMHO and experience. MIKE

I think you are right with one caveat...I pond in the same manner, build
it
and let it take care of itself, but when I built, I over built my filter.
I
think if you have a large body of water, properly filtered, it is much
more
forgiving then an overstocked, smaller pond.

BV.