white foam on surface

Algae problems in swimming pool water.
Green (cloudy) water or slimy pool walls.
Black algae. Mustard algae. Pink or white pool mold.
South TX Poolguy
Pool Enthusiast
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Posts: 24
Joined: Wed 11 Jul, 2007 22:30

Postby South TX Poolguy » Fri 13 Jul, 2007 20:36

Omni makes a line of anti foaming agents.
omnipool dotcom

See if there is a dealer near you.


Backglass
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Joined: Tue 29 May, 2007 09:02

Postby Backglass » Sat 14 Jul, 2007 10:13

Using your test kit, please post a full set of numbers so we can see where you are at.

That way we can give real advice rather than guessing.
Pool hater

Foam

Postby Pool hater » Fri 17 Aug, 2007 10:15

I only open my pool when my children visit me. The water was clear as could be. I added the start up programme ( no Algicide) Then, today, after a thunderstorm Foam started up. Having had this problem a couple of years ago and a fairly strong acid water did the trick I checked the PH, and adjusted it. My pool products provider said it was caused by Algi. So I added a little algicide. Now it is worse and seems to be coming out, direct from the filter,.in great clouds The main thing is Is it dangerous for my grandchldren to swim in it? As everyone remarks the water under the foam is clear.

Anyone know any magic cure?
Pool hater

Foam

Postby Pool hater » Fri 17 Aug, 2007 10:16

I only open my pool when my children visit me. The water was clear as could be. I added the start up programme ( no Algicide) Then, today, after a thunderstorm Foam started up. Having had this problem a couple of years ago and a fairly strong acid water did the trick I checked the PH, and adjusted it. My pool products provider said it was caused by Algi. So I added a little algicide. Now it is worse and seems to be coming out, direct from the filter,.in great clouds The main thing is Is it dangerous for my grandchldren to swim in it? As everyone remarks the water under the foam is clear.

Anyone know any magic cure?
Backglass
Swimming Pool Superstar
Swimming Pool Superstar
Posts: 727
Joined: Tue 29 May, 2007 09:02

Postby Backglass » Fri 17 Aug, 2007 10:20

Chlorine is your magic cure. ;)

Using your test kit, please post a full set of numbers so we can see where your water is at.

That way we can give real advice rather than guessing.
===============================
I'm no expert...just a long time pool owner. The real experts are at www . troublefreepool . com

Download Bleachcalc free at troublefreepool . com /files/BleachCalc262.exe and start saving money on chemicals.
chem geek
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Location: San Rafael, California

Postby chem geek » Fri 17 Aug, 2007 12:52

Regarding foaming when the pump is running, there are indeed several types of algaecides and one type, called linear quats, have an ingredient of "Alkyl dimethylbenzylammonium chloride" or similar compound and this type of algaecide, which is the least expensive, foams.

The better algaecide that doesn't foam is called PolyQuat (or polymer quat) and has an ingredient of "Poly{oxyethylene (dimethyliminio) Ethylene (dimethyliminio) ethylene dichloride}". It is more expensive, but does not foam and may be a more effective algaecide as well, though I don't have definitive data or user reports to conclusively confirm that. It is certainly a good algaecide for preventing algae, though not very good working against an existing algae bloom.

Another chemical you may see is "Polydimethyldiallyammonium Chloride" and that appears to mostly be used against pink slime which is actually a bacteria and not an algae.

Some algaecides contain copper and you should be careful when using them. Though copper is a very effective algaecide, it also has side effects in that it will precipitate out of solution at higher pH so a very common problem is to get this algaecide with copper in it and use it and then shock the pool with Cal-Hypo or chlorinating liquid (or bleach) and the water turns green (see this thread for one of many examples). The copper can also make blond hair get a green tinge.

Unfortunately, you really need to look at the ingredients since the names of the products do not usually indicate what is in them and many pool stores don't know.

Richard
Paquito

Omni pool info - South TX Poolguy

Postby Paquito » Wed 10 Oct, 2007 09:30

I'm at their website, do you know the name of the product? I'm not sure if it is the LIQUID FLOCâ„¢ PLUS or the POOL SURFACE CLEANER. It may be another one, please detail.

Thanks the foam is driving me crazy and we have a birthday pool party on friday.

Thanks again.
paquito

Calcium Hardness Up

Postby paquito » Wed 10 Oct, 2007 09:42

Not sure if Calcium Hardness Up will help the foam condition, if somebody knows, please let us know.

Thanks.
chem geek
Pool Industry Leader
Pool Industry Leader
Posts: 2382
Joined: Thu 21 Jun, 2007 21:27
Location: San Rafael, California

Postby chem geek » Wed 10 Oct, 2007 11:58

If your calcium is very low (say, 50 ppm) then you can get more foaming. A Calcium Hardness (CH) level of 150 ppm or above should prevent foaming, if such foaming is coming from soap-like substances since the calcium will precipitate the soap preventing it from foaming.

Richard
txff636

Foam

Postby txff636 » Fri 14 Mar, 2008 14:45

I bought algaecide from Lowes and will never do it again, it's the same stuff Walmart sells( HTH )???? I have a 34000 gallon pool that I added the algaecide to, what a mistake foam every where. Finally I went and bought 6 bottles of spa defoamer dumped them all in and that did the trick. Hope it works for everyone else.

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