fighting mustard

[izzysmommy]

Just checked and the chlorine tablets do have the trich in them so ill hold off on those I'm not sure of the stop yellow as we threw out the canister the filter is a hayward pro series 220t its raining right now but when it stops ill go see if I can read them off the unit itself. My mother in law does have the aqua chem test kit but it only goes up to 5.0 on the chlorine. Sorry for sounding like an idiot I've just never messed with any of this before

[aylad]

The aqua chem test isn't going to read chlorine levels high enough, accurately enough, to fight the mustard battle. You can force it to read chlorine levels higher than 5.0, but you'll have to test from a diluted sample, and you'll lose some accuracy with each dilution. Does your aqua chem set test for CYA?

[CarlD]

Jan's right. I suspect your CYA / Stabilizer level is 0 (check the pool store readout). You're going to need lots of chlorine to fight and kill the algae. Your best bet is either bleach, or, if you have it available, 12% Liquid Chlorine. On gallon of 6% bleach will add about 1.7ppm of chlorine to your pool. A gallon of the Liquid Chlorine will add about 3.4.

If the pool is concrete, tile or other similar material, you can really hammer the chlorine levels without risking damage to the pool. If it's vinyl, it's a balancing act, depending on the level of stabilizer. Look for our Best Guess table for levels of chlorine re: stabilizer.

[aylad]

Platinum,

We really recommend that new users spend a good bit of time reading through the forums so that they learn what we're all about before posting answers to questions. For example, we generally do not recommend algaecides except for polyquat, and even then only in certain instances. In most cases, the use of algaecides, if one doesn't understand what it's doing to the pool water, can actually make problems worse instead of better. This poster can kill the mustard algae by shocking to a very high level and holding that level until the mustard is gone, but first she must get a test kit that will measure chlorine levels that high. Please take some time and do some reading....

Thanks

[PlatinumPS]

Oh god, one of these forums huh...30 years in the biz, i know what I'm talking about. I get right to the point & take care of the problem. You seem like one of those pools guys that'll tell a customrr anythng just to get their kney. Then they call me a month later to fix what you messed up. I've had it with you people. New to the website, not pool care. Algaecides work great by the way. I recommend people like you to go back through your books or take a refresher course every couple years with a the new products coming out all tue time

[Watermom]

PlatinumPS,
I don't think Pool Forum is the place for you. There are plenty of other forums out there that may work out better for you to join. Coming here and being critical of the moderators and the tried and true methods advocated here is not a great way to make friends. You may want to keep looking for a forum that may better be to your liking.

Good luck.

[PlatinumPS]

Thought this site was for experienced pool cleaner such as myself.

[KKORDON]

Once you have killed the algae, you may want to perform a phosphate test on the water. Phosphates are the primary food source for Algae and you will have much better results in keeping your pool Algae-free is you can remove their food source. Remember, you must kill the algae prior to testing for phosphates in order to get an accurate reading! Good Luck!