Mosquitos, chlorine, and pond liners for pond/water feature


Joined
Sep 29, 2016
Messages
13
Reaction score
4
Country
Australia
I'm building a 600 liter pond with a small rock water feature. I'm told I need to use chlorine or fish to manage mosquitos even though I plan to have some movement of water going 24/7. Can I use chlorine with a pond liner? Is there a better product since I don't need it to be swimming pool clean? -thx!
 
Ad

Advertisements

Joined
Sep 18, 2012
Messages
4,523
Reaction score
3,714
Location
Desoto, Texas (Dallas County) North Texas, Zone 8a
Showcase(s):
1

sissy

sissy
Joined
Jan 17, 2011
Messages
32,793
Reaction score
15,424
Location
Axton virginia
Showcase(s):
1
Hardiness Zone
7A
Country
United States
Welcome and not sure where you are at but do you want to invite frogs or any other creatures to your pond .If not you can use salt .Mosquito larvae don't really care for salt water .You can also use peroxide .
 
Joined
Sep 14, 2013
Messages
5,711
Reaction score
4,437
Location
Cincinnati, Ohio
Hardiness Zone
6 A
Country
United States
Welcome :) I thought moving water was sufficient to prevent mosquito larvae, as they prefer standing water, but I'll be interested to hear what others have to say.
 
Ad

Advertisements

sissy

sissy
Joined
Jan 17, 2011
Messages
32,793
Reaction score
15,424
Location
Axton virginia
Showcase(s):
1
Hardiness Zone
7A
Country
United States
Thing is anyplace in a water feature has a chance to grow mosquito's .Every nook and cranny where plants are can breed them .They need very little water .
 
Joined
Sep 29, 2016
Messages
13
Reaction score
4
Country
Australia
Thank you for the welcome.

I'm on the Sunshine Coast, QLD, Australia.

Yes, I thought moving water was sufficient to avoid mosquitos but everyone I talk to says that won't be enough. Maybe, mozzies are more resilient in Australia??

Found mosquito dunks on line so that is an option. Youtube shows they float, are they safe with pond liners? Do you just toss them in or do you need a floating basket?

Plan is no fish. I'd prefer no frogs either as they attract snakes which are a big problem here. That said, I don't want to hurt any frogs. Is there anything that will discourage frogs and lizards but not hurt them?

The location will be in the shade all day except for a couple hours at night. Will pond dye be sufficient to keep algae from being a problem if I'm not using chlorine?

If i do decide to use chlorine for mozzies and algae, will it damage the pond liner?
 

addy1

water gardener / gold fish and shubunkins
Moderator
Donor
Joined
Jun 23, 2010
Messages
41,547
Reaction score
25,508
Location
Frederick, Maryland
Showcase(s):
1
Hardiness Zone
6b
Country
United States
Welcome to our group!
I wouldn't think that a bit of chlorine would harm the liner.
 
Joined
Oct 28, 2013
Messages
11,637
Reaction score
11,729
Location
Northern IL
Showcase(s):
1
Welcome!

Not to throw a wet blanket on your plan, but my sister put in a small pond and has had a devil of a time keeping the snakes out. In her case it's the water that is attracting them. They devoured all her fish and the frogs that were living in the pond and still kept coming. She was finding four or five AT A TIME in her tiny pond! <shudder>! What finally worked was surrounding the entire perimeter with sharp stones.

Good luck!
 

sissy

sissy
Joined
Jan 17, 2011
Messages
32,793
Reaction score
15,424
Location
Axton virginia
Showcase(s):
1
Hardiness Zone
7A
Country
United States
Checked with pondliner 45 mil liner and they say they will not warranty the liner if you use chlorine .They say long term use may harm the liner over time .But they do not state how much chlorine .If it is very low dose I can't see it harming it ( pool liners I guess are different ).They say it can dry out the liner .Plus advantages of chlorine means frogs or snakes would stay away from the water feature .Only thing is no plants would survive .Mosquito dunks just float around .Plus notice you say liner but not what kind
 
Ad

Advertisements

addy1

water gardener / gold fish and shubunkins
Moderator
Donor
Joined
Jun 23, 2010
Messages
41,547
Reaction score
25,508
Location
Frederick, Maryland
Showcase(s):
1
Hardiness Zone
6b
Country
United States
Keep the dose low, a little bit goes a long way in killing skeeters.

Vegetable oil works if you don't mind the slick. I used it is a small fishless fountain pond in Arizona.
 

Meyer Jordan

Tadpole
Joined
Oct 10, 2014
Messages
7,177
Reaction score
5,666
Location
Pensacola, Florida
Hardiness Zone
9a
Country
United States
Checked with pondliner 45 mil liner and they say they will not warranty the liner if you use chlorine .They say long term use may harm the liner over time .But they do not state how much chlorine .If it is very low dose I can't see it harming it ( pool liners I guess are different ).They say it can dry out the liner .Plus advantages of chlorine means frogs or snakes would stay away from the water feature .Only thing is no plants would survive .Mosquito dunks just float around .Plus notice you say liner but not what kind

Here is a chart of the effects of most any chemical on EPDM liner.
 

Attachments

  • EPDM chemical compatibilities.pdf
    31.4 KB · Views: 606

MSH

Joined
Nov 19, 2016
Messages
7
Reaction score
0
Hello all. New to this thread but related....?
Fully sun exposed in South Carolina. 1,100 gallons. Don't have fish anymore bc birds kept eating. Emptied pond, killed all plant life and no longer want frogs. I just want it to be a pretty water feature. Was thinking chlorine, but afraid of damaging liner. The PDF above says Bromine is just as bad... I saw a salt comment... do I just get salt tablets and drop them in every so often? That will keep frogs and algae growth?
 

Meyer Jordan

Tadpole
Joined
Oct 10, 2014
Messages
7,177
Reaction score
5,666
Location
Pensacola, Florida
Hardiness Zone
9a
Country
United States
Hello all. New to this thread but related....?
Fully sun exposed in South Carolina. 1,100 gallons. Don't have fish anymore bc birds kept eating. Emptied pond, killed all plant life and no longer want frogs. I just want it to be a pretty water feature. Was thinking chlorine, but afraid of damaging liner. The PDF above says Bromine is just as bad... I saw a salt comment... do I just get salt tablets and drop them in every so often? That will keep frogs and algae growth?

The addition of salt will not reduce the occurrence of frogs, it will only kill them and others will come nor will salt have any appreciable effect on algae growth. There are species of algae for every water salinity level.
Your best bet is the use of Chlorine tabs like those used in swimming pools. Same effect with frogs but it will control algae.Chlorine does have a negative effect on the integrity of EPDM but with a "C" rating it should not cause any problem for years.
You will still need to maintain some level of water movement for Chlorine does not always kill mosquito larvae.
 
Joined
Nov 4, 2016
Messages
36
Reaction score
18
Location
Sun City West, AZ
Hardiness Zone
9b
I know some folks here don't like Gambusia, but since they are indigenous to So Carolina, why not?

Don't feed them, let the birds eat them and or reduce the population occasionally yourself.

Just my $0.02...
 
Ad

Advertisements

MSH

Joined
Nov 19, 2016
Messages
7
Reaction score
0
The addition of salt will not reduce the occurrence of frogs, it will only kill them and others will come nor will salt have any appreciable effect on algae growth. There are species of algae for every water salinity level.
Your best bet is the use of Chlorine tabs like those used in swimming pools. Same effect with frogs but it will control algae.Chlorine does have a negative effect on the integrity of EPDM but with a "C" rating it should not cause any problem for years.
You will still need to maintain some level of water movement for Chlorine does not always kill mosquito larvae.
When you say years... how many? I don't have (or think) I have a mosquito problem since water is flowing well and did have frogs.. so was thinking the mosquito tablets
 

MSH

Joined
Nov 19, 2016
Messages
7
Reaction score
0
I know some folks here don't like Gambusia, but since they are indigenous to So Carolina, why not?

Don't feed them, let the birds eat them and or reduce the population occasionally yourself.

Just my $0.02...
I had to look that fish up. :)
I was told brim would do the same? Eat tadpoles...
 

Meyer Jordan

Tadpole
Joined
Oct 10, 2014
Messages
7,177
Reaction score
5,666
Location
Pensacola, Florida
Hardiness Zone
9a
Country
United States
When you say years... how many? I don't have (or think) I have a mosquito problem since water is flowing well and did have frogs.. so was thinking the mosquito tablets

I think that the life of the liner exposed to Chlorine would be determined by the solution strength of the Chlorine.You would not need the same level of Chlorine ass used in swimming pools since the control of aquatic pathogens would not be of the same level of importance as in a human immersion venue.

Mosquito dunks, either tablet or granular will control mosquitoes.

Update: Did some quick research. It seems-
-that Chloramine causes greater degradation in EPDM than Chlorine.
-that low pH and high temperatures support higher degradation. (test case in Japan revealed a usable life of about 3 years at high 45C-65C temperatures when exposed to Chlorine treated city water).
 
Ad

Advertisements

Joined
Sep 29, 2016
Messages
13
Reaction score
4
Country
Australia
Checked with pondliner 45 mil liner and they say they will not warranty the liner if you use chlorine .They say long term use may harm the liner over time .But they do not state how much chlorine .If it is very low dose I can't see it harming it ( pool liners I guess are different ).They say it can dry out the liner .Plus advantages of chlorine means frogs or snakes would stay away from the water feature .Only thing is no plants would survive .Mosquito dunks just float around .Plus notice you say liner but not what kind

I had some structural challenges so will probably buy the liner next week. Hardware store has 0.5mm liner but considering spending more to get Firestone 1.02mm EPDM.

Latest inputs are I need to also worry about Cane toads, so now more focused on chlorine.
 
Ad

Advertisements


Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Similar Threads

Mosquitos!!! 25
Chlorine in water 7
Accidental overfill of pond with chlorine 8
Mosquitos and dragonflies 11
Stress Coat/Ammonia/Chlorine neutralizer 7
Mosquitos. Darn! 35
Mosquitos in my tank 20
Mosquitos? 2

Top