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4CornersPuddle, ar_confederate, DrLuke, esshup, FayetteTX, KenHorton, RStringer, wbuffetjr
Total Likes: 25
Original Post (Thread Starter)
8 acre pond at 10,000' - lots of aeration ?s #385145 08/16/2014 5:38 PM
by wbuffetjr
wbuffetjr
Hello everyone! Great forum here!

I have looked thru about 30 pages in this aeration section, read until I am cross eyed and cannot find any specific examples that fit my situation so I am starting a new post.

We have a 6 acre lake in the mountains. Like I said it sits right at 10,000 feet. The previous owner used to stock it yearly and the winter kill was just an accepted part of life. I am not ok with that. The lake is amazing and has a ton of "feed" in it. It has what appear to be freshwater shrimp, water dogs, leeches, giant crayfish, fat head minnows and I don't know what else. When trout WERE stocked in the lake each year, they out grew the trout stocked down in neighboring lakes 2 to 1 by the end of the summers every year. Their meat turned pink twice as fast and they just seemed to THRIVE. Until winter and then every bear on the mountain was there eating the carcasses every spring.

To make a long story short, we rebuilt the entire dam this summer due to a breach in the old "dam". There are numerous water sources coming into the lake. One big seep puts out a significant amount of water in one corner, one spring flows in on one long side (same side as the seep) and other spring flows in on one end and the spillway is on the other end. Amount of water flow has never been measured and I can't even guess. The average depth of the lake before the rebuild was an estimated 4-5' and it was basically shaped like a rectangle. The deepest spot was in the corner of the seep and was 17' deep. The rest of the lake had a TON of 6'-12' area. There was a ton of weeds growing in the shallows - not sure what species. With the repaired damn, we restored the lost water level 4.5'. Now I am expecting an average depth of 8-9' and the deepest area 22-23'. I also added a second deep hole at the other corner of the lake. Should be approximately 16-17' deep once full. The max water level will not be reached until the spring runoff in 2015.
I am headed back out there for archery Elk season in September and hope to install an aerator while I am there. I REALLY like the American Eagle units even though reviews are hard to find due to their stance on being rated. Whatever. They look to be the heaviest duty ones out there and that's what I need. This lake is inaccessible, except by snow machine, for about 6-7 months per year. Electricity is about 20 miles away. In the winter all the snow drifts towards the damn. Pretty sure wind will not be a problem during the winter. During the summer there is ample wind, I believe, as well. There always seems to be ripples on the lake. I know one windmill is probably not enough to properly aerate the entire lake, but at this point one or two open spots in the ice should make a huge difference in fish survival right?

I plan on establishing Brook Trout. Then build some spawning boxes that the trout will spawn in. I do not want to have to stock it every year.

I hope I have provided enough info and haven't bored anyone to death. Here's my main questions:

1)Anyone have any reviews on the American Eagle windmills?
2)How many diffusers should I run and how deep should I place them?
3)What type of diffusers would be best for this application?
4) Any other input cause I am a total noob!
Liked Replies
Re: 8 acre pond at 10,000' - lots of aeration ?s #520766 May 9th a 11:23 AM
by wbuffetjr
wbuffetjr
And we have open water!! ~5 weeks sooner than last year. That's gotta make fish survival a little easier. Hopefully my buddy is going up this weekend to check things out. It will be a hike in trip. Still can't get a vehicle to the cabin. The last 1/2 mile or so drive to the cabin is all North facing timber so it stays snow covered for an extra couple or three weeks depending on weather.

[Linked Image from i.imgur.com]
2 members like this
Re: 8 acre pond at 10,000' - lots of aeration ?s #521499 May 23rd a 11:09 PM
by wbuffetjr
wbuffetjr
Well I got some PHENOMENAL news today!!! My buddies went up and the fish survived the winter again!!! They tried to fish for a little bit but there was too much wind again. Before the wind got too crazy they saw 8-10 hit the surface. Enough they were both confident to 100% confirm fish!! Don't know how many, but they are there. Feeling more confident about stocking fish this year.

Both pumps have been running simultaneous for 8 days now. DO levels are OFF the charts (for our place)! 5' deep temp was 54 degrees and 9.2 PPM!! Again, way too windy to get out on the lake in the canoe to get readings any deeper - 25-30 mph winds on the anemometer!

That is fish survival 3 years in a row!!
2 members like this
Re: 8 acre pond at 10,000' - lots of aeration ?s #521977 Jun 1st a 11:11 AM
by wbuffetjr
wbuffetjr
Couple buddies went up to our place to go fishing. They had a heck of a time. Caught a bunch of fish. Even had one Ultra Light rod snapped in half - No joke! He said the fish took off, folded the rod over and then boom! You know how fish stories go - they caught one even bigger than this but didn't have the camera. Now if I can just get them to quit holding them by the gills! This is a two year old Splake.

[Linked Image from i.imgur.com]
2 members like this
Re: 8 acre pond at 10,000' - lots of aeration ?s #523851 Jul 22nd a 05:37 PM
by wbuffetjr
wbuffetjr
Originally Posted by esshup
Just make sure you run the aeration system long enough to keep more than 6 mg/l at the deepest part of the pond.

Trout will survive in water temps above 70°F if the O2 readings are in the 9mg/l or higher. (that's at 780' elevation).

With Bob Lusk recently discussing LMB actually seeking out favorable water temps over better DO I have tried to pay more attention to temp this year. I would GUESS trout are even more sensitive to temps. Last year I got surface temps up to 71. This year highest surface temp I read was 65 so doing MUCH better. I had 7.5PPM DO at 1' and 7.0PPM at 12'. I am currently running the 1/2HP Thomas 2660 for 1 hour at midnight, 1 hour at 3:00am and turns on again at 5:30am to 1:30PM. Currently air temperatures are in the 50's at 5:30am so I think the night time running is helping keep water temps lower. The big 1HP pump comes on at 7:30am to 1:30pm and runs simultaneously with the 1/2HP pump. I will increase duration of both pumps next month as air temps come down.

Fish are HUGE and fight like crazy! Made 5 casts and caught 4 fish while standing in the same spot!

The water continues to do new and different things. Last year the grass blade bloom (GBB) started in early to mid August. This year the GBB showed up in late June. I have never seen the water so clear in July. If it was not for the GBB I would guess visibility would be 7-8'. Had a similar GBB/visibility situation for the first time ever last September. This year it happened in July - another first. Will be interesting to see what happens after a year at the increased level of aeration I am running nowadays.

Got one "plume pipe" installed in the plume of a dual diffuser. I had pipes at the cabin I wanted to use. those pipes turned out to be WAY too heavy duty. First pipe ended up laying horizontal on the bottom of the lake and is now considered structure. I am going to source some lighter pipe and install a second plume pipe in September. The purpose of the plume pipe is to stop the ice domes from forming over the aeration plumes during winter. 98% sure the ice domes are what have been preventing me from keeping a hole open in the ice through the last two winters. Also reoriented two other diffusers closer to natural structure protruding from the water as a test to see if the natural structures could also disrupt the domes. My remote camera will take one daily pic everyday and I will be able to monitor progress. Should be interesting.

Cool pic from the trip. Not sure why we get so many rainbows and not gonna complain about it.
[Linked Image from i.imgur.com]
2 members like this
Re: 9 acre pond at 10,000' - lots of aeration ?s #529430 Jan 5th a 02:23 AM
by RStringer
RStringer
Ok mister Buffet I have an idea. Now for starters I want you to know I know almost zero about aeration (keep tht in mind). Would it be beneficial to put 3 diffusers in a small triangle. No clue how close I'm talking about maybe 20 feet apart. Close enough they would help each other out keeping a huge hole open. If it a stupid idea feel free to tell me. Lol wont hurt my feelings like I said I know next to nothing about this stuff.

Edit - Now dont get me wrong I'm not suggesting you try it ar this point in the year. No reason to get crazy lol.
2 members like this
Re: 8 acre pond at 10,000' - lots of aeration ?s #520851 May 11th a 08:17 PM
by canyoncreek
canyoncreek
Yes, beautiful green tinge there, lets think positive, with open holes most of the winter you have to have some hardy splake and scuds survive right? When is your buddy able to get us pictures? Would love to see if the crayfish made it too...
1 member likes this
Re: 8 acre pond at 10,000' - lots of aeration ?s #520441 May 4th a 01:10 PM
by 4CornersPuddle
4CornersPuddle
esshup, that theory is spot on. We've had plenty of research done down here, as well as anecdotal evidence, that much of our soil is deposited material from Arizona and New Mexico (the Land of Enchantment). We refer to this loess as "grains of enchantment". Over many years it has accumulated 6' deep in places.

After a Spring windstorm, the high country snow has a decided reddish cast to it. We're seeing more and more of that as the dry country to the south loses its moisture earlier in the Spring, and the windstorms increase in frequency.
1 member likes this
Re: 8 acre pond at 10,000' - lots of aeration ?s #520242 May 1st a 04:58 AM
by esshup
esshup
Think about all the dust, smoke particles, etc. that get caught up in the snow over the course of the winter. When it melts, the dust/dirt gets more concentrated (that's my theory).
1 member likes this
Re: 8 acre pond at 10,000' - lots of aeration ?s #520045 Apr 28th a 04:35 AM
by 4CornersPuddle
4CornersPuddle
I like your thinking on the additional pump to move more water this summer. Going in to winter with higher dissolved oxygen in the pond may help.

I worked up above 9000' feet today. Snow is nearly gone-only small piles on the north side of some buildings and in drifts alongside the roads.

We're expecting a couple of 80+ degree days this week down here at 6500'. Hopefully your pond will see 60s or even 70. It felt hot in the sun today at 9000+.
1 member likes this
Re: 8 acre pond at 10,000' - lots of aeration ?s #517711 Mar 7th a 06:20 PM
by DrWizz
DrWizz
This thread has always intrigued me and I always look forward to reading the input from the experts. Hopefully they will chime in and critique my ramblings below.

I have found the following web site informative, and I reference it occasionally to brush up on the ins and outs of dissolved oxygen:

https://www.fondriest.com/environmental-measurements/parameters/water-quality/dissolved-oxygen/

Can anyone comment on the possibility that it is OK if there is not open water exposed to the atmosphere on this lake? In other words, let’s assume that the percent O2 that is entering the water column via the diffuser is 21%, and that relatively little oxygen gets absorbed as it rises. If the air from the diffusers gets trapped under the ice, and spreads between the water/ice interface, won’t there still be diffusion of O2 into the water? Eventually, I would think, the air would make its way to the edges or fractures in the ice and escape, but if the diffusers continue to run, the air tracking along this ice/water interface should be at 21% O2 and diffusion into the lake water would occur. If this was happening across a surface area even larger than a hole in the ice (created by a diffuser) it would not be inconceivable that there is even greater surface area of air/water interface in this scenario compared to one with a smallish hole in the ice. One can even take it further. Let’s say the weight of the ice on that trapped air increases the partial pressure enough that there is even greater diffusion of O2 across the water surface (see link above). If that occurs, then it might, paradoxically, be a detriment to have a hole in the ice. Thoughts?
1 member likes this
Re: 8 acre pond at 10,000' - lots of aeration ?s #521503 May 23rd a 11:48 PM
by DrLuke
DrLuke
That's awesome! Might be some lunkers lurking 🤔
1 member likes this
Re: 8 acre pond at 10,000' - lots of aeration ?s #521514 May 24th a 02:49 AM
by canyoncreek
canyoncreek
TREMENDOUS news!! So happy and can't wait to see the pictures of the fish and critters in the shallows!
1 member likes this
Re: 8 acre pond at 10,000' - lots of aeration ?s #522011 Jun 2nd a 02:08 AM
by 4CornersPuddle
4CornersPuddle
Quite the fish there, wbuffetjr! 2 years old? They do have lots of natural foods, don't they! Those scuds, although small, are packed with nutrients, it seems.
I agree, get your buddies to hold the fish with two hands and sideways to the camera so we can see their beauty. Splake and tigers are the next best thing to brookies, aren't they?
1 member likes this
Re: 8 acre pond at 10,000' - lots of aeration ?s #523932 Jul 24th a 03:29 PM
by wbuffetjr
wbuffetjr
Unfortunately, I only took one fish pic the whole time I was there. Biggest fish I've ever caught in the lake, but the pic doesn't give any perspective. I was in too big of a hurry to get them back in the water.

[Linked Image from i.imgur.com]
1 member likes this
Re: 8 acre pond at 10,000' - lots of aeration ?s #517619 Mar 6th a 12:21 AM
by Joey Quarry
Joey Quarry
3 feet of ice? I guess that is life on an alpine lake? Your photos are always the best, no matter the season. I have just the opposite issue. It can be -20 for three straight days but a week later the springs open up holes on the ice. Hope those trout make it again this year.
1 member likes this
Re: 9 acre pond at 10,000' - lots of aeration ?s #527396 Nov 8th a 04:28 AM
by esshup
esshup
The only thing missing is a big Bull Elk in the foreground. LOL
1 member likes this
Re: 9 acre pond at 10,000' - lots of aeration ?s #527702 Nov 18th a 01:02 AM
by wbuffetjr
wbuffetjr
BIG holes so far! Quad hole goes all the way to shore. That should disrupt any dome I am thinking. Hard to see the single hole to the far right in the shadows.

Bottom of the first inning though.

[Linked Image from i.imgur.com]
1 member likes this
Re: 9 acre pond at 10,000' - lots of aeration ?s #528722 Dec 10th a 05:04 PM
by Mainahs70
Mainahs70
Very interesting read. Just finished the entire thread at Jpsdad suggestion. My 1 acre pond should be finished by next week and filled by spring thaw if not earlier. I'll being using some of your experiences in aerating through our southern Maine winters. Thanks for the thread.

I'm rooting for the quad hole btw.
1 member likes this
Re: 9 acre pond at 10,000' - lots of aeration ?s #529077 Dec 22nd a 07:31 PM
by wbuffetjr
wbuffetjr
Annnd another update:

More snow has fallen. Neighbor said we have 3' on the driveway. Not so much on the lake as wind usually keeps it blown off. More snow inbound.

Quad hole by shore and fallen trees is open, but it looks a little slushy which makes me think it is struggling some.

Single hole by the standing dead tree is open, but also might be slushy.

Koenders hole is open, but has gotten smaller.

Close dual is basically closed. This is the only diffuser with no type of obstruction to deter ice from doming up.

The far dual with the pipe is open and getting bigger everyday!! It is the darkest color which means open water for sure.

Hopefully some DO data coming soon.

[Linked Image from i.imgur.com]
1 member likes this
Re: 9 acre pond at 10,000' - lots of aeration ?s #529199 Dec 27th a 02:40 PM
by wbuffetjr
wbuffetjr
Originally Posted by esshup
I will reserve comments until the O2 and temp readings come in. I'd love to see the temp profile for the pond from just below the ice to the bottom in the deepest part of the pond, then correlate that to the depth that the diffusers are placed at. I'd love to see you do something next year, but I'll not say what it is until the temp profiles come back.

I'm going to check on a system that was installed to keep ice from forming around a pier, and I will report back once I see how it's going this year.

Scott

I got to admit, I'd love to hear your theory now instead of after the results come in!!

I have said this before, but I will say it again. I will 99.9% guarantee the water is basically homogenous. It has been over the past 2-3 winters when we were pumping far less air so I've got to imagine this year the water will be even more fully mixed. In past years we had less than half a degree of difference in temp from top to bottom. I believe I am achieving this in winter due to cold waters ability to move easier and farther than warm water. IIRC Bill Cody has stated that in winter he has documented a diffuser moving water 200' away due to cold water moving easier than warm water. Jeff in MN has a Youtube video of GoPro footage filmed under the ice of a single diffuser moving water even further away than that.

I just do not see how the pipe is not a homerun at this point. There's no question DO will improve with a hole open and there seems to be no question that a pipe in the plume either causes the hole to reopen MUCH faster OR keeps a hole open that would otherwise be iced over solid. That HAS to be a win for DO levels and water quality.

I am starting to believe plume intensity matters much less than I thought, at least in my setting. If plume intensity mattered I do not see how the koenders could currently have a hole open and the close dual is frozen over solid. The koenders has about the weakest plume you can imagine and the close dual has a downright ferocious plume. What is happening right now makes no sense to me if plume intensity actually matters. I am also not convinced the coarser bubbles would help my ice doming situation. If the ice domes up and is no longer touching the surface of the water how would coarser bubbles help at all? That is why I am sticking with the vertex diffusers. The pipe opens the hole and then the vertex fine bubbles moves more water to the surface for gas exchange than the coarse bubbles would.

Honestly I just don't think we can compare systems in your area to these true "northern" systems. You guys might get an inch or two or three, right? I am getting three feet of ice!!! IMHO, Jeff in MN is the closest comparison to what I deal with. He gets MUCH colder temps than I get, same amount of ice, less snow than I get and then I have altitude always working against me. I think the amount of ice we get, the rate at which the ice can form once aeration turns off, how low the water temps get, how long our water is under ice, etc are game changers for us and require solutions that you guys never have to worry about. I think there is a reason you have never had to deal with the ice doming up, yet Jeff and I both have dealt with it every single year. Jeff has disproven a LOT of winter aeration stuff that gets regularly posted and reposted here on PB, but he won't post any of his findings because he just doesn't care to argue it with folks. For instance, he now runs his aeration 24/7 all through the winter. He "super chills" his entire pond down to 33 degrees or less. In the spring at ice off his LMB are coming out fat, happy and healthy with impressive growth over the LONG winter under thick ice. That isn't supposed to be possible, right? Yet it's happening.

Bill Cody has said this quite a while back and I agree more now than ever. I think we have a LONG way to go to fully understand aeration under the ice, especially thick ice.
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