United Chemical Yellow Treat 2 Treat² 2 lb. Swimming Pool Mustard Algaecide YT2-C12
- Using United Chemical Yellow Treat 2 Treat² 3 lb. Mustard Algicide YT2-C12-3 you can see Results Fast: 24 hours or less.
- United Chemical Yellow Treat 2 Treat² 3 lb. Mustard Algicide YT2-C12-3 Leaves a chlorine reading so no follow-up shocking needed the next day.
- United Chemical Yellow Treat 2 Treat² 3 lb. Mustard Algicide Contains zero ingredients that can stain.
Yellow Treat®² makes killing mustard algae fast and easy. Just add 5 ounces per 10,000 gallons, brush, and shock. Then wake up the next day to an algae-free pool that still has a chlorine reading.
Yellow Treat®² contains ChlorineBoost™, the patented formula of ingredients that supercharges its algae killing ability while stabilize chlorine readings.
United Chemical Yellow Treat 2 Treat² 2 lb. Swimming Pool Mustard Algaecide YT2-C12 Directions
It is a violation of federal law to use this product in a manner inconsistent with labeling. Always add Yellow Treat®² directly to pool or spa.
- For swimming pools, add 5 ounces (one level capful) of Yellow Treat®² per 10,000 gallons by broadcasting directly onto pool water surface. For spas, add the equivalent of 1/4 ounce per 500 gallons by broadcasting directly onto spa water surface.
- Brush pool or spa.
- Independent of chlorine level, immediately add liquid or dry chlorinating product for super-chlorination. Use the recommended dosage rate for superchlorination from an EPA registered chlorinating product.
- Before swimming, use a test kit for measuring chlorine level, as directed on your chlorinating product label. Do not enter the water or swim until the chlorine residual drops to 3 ppm.
- To prevent the reoccurrence of yellow and mustard algae and maintain crystal clear water, No Mor Problems® may be
used in conjunction with chlorinating and brominating products. Follow the directions for use for No Mor Problems® and maintain the chlorine or bromine level recommended on your chlorinating or brominating product.
Please be advised that certain manufacturers - including Pentair® (with their TradeGrade® products), Jandy®/Fluidra® (with their Trade Series Exclusive™ products), and Hayward® (with their Expert Line® products) - do not honor manufacturer warranties on specific product lines purchased online.
These policies are intentionally enforced by the manufacturers to prevent customers from purchasing the same products at lower prices online.
Warranty coverage for these products is generally only available when purchased in person from an authorized local dealer.
While we strive to take care of our customers by offering the lowest possible prices on brand new, genuine products, we do not provide warranty coverage ourselves, nor can we guarantee that the manufacturer will honor the warranty on products purchased from our online store.
It is the buyer’s responsibility to confirm warranty eligibility directly with the manufacturer before making a purchase.
If you are a local customer, you may be able to purchase these items in-store and obtain manufacturer warranty coverage. However, for many of our customers across the country, paying significantly more locally just to access a manufacturer warranty often doesn’t make financial sense, especially when some local suppliers charge considerably higher prices.
By completing your purchase, you acknowledge and agree that we are not responsible for warranty support or claims denied by the manufacturer due to their online sales restrictions.

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