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DuraChlor Stabilized Chlorine Super 90 - 25 Lbs.
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Haviland
Poolweb #C002352-PL25

DuraChlor Stabilized Chlorine Super 90 - 25 Lbs.

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$253.63 $253.63 & ships free!
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This item ships free via freight truck. This means that the item cannot ship via regular transportation because it is too large, heavy or needs to be palletized. Learn more about receiving an LTL shipment.

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Product Information

Description

This is a 25 pound pail of highly concentrated chlorine granules used on white plaster pools only for sanitation and algae removal. This trichloro-s-triazinetrione chlorine product is in the form of concentrated granules and contains 90% available chlorine. Trichloro-s-triazinetrione kills and controls bacteria and algae.

Active Ingredient of the DuraChlor Super 90: 99% Trichloro-s-triazinetrione.

Directions for Adding DuraChlor Super 90 to Your Swimming Pool for Super-chlorination:

Check residual chlorine. If below 1.0 ppm, broadcast over the deepest end of the pool at night or when no one is using the pool. Add 4 ounces for every 12,000 gallons of pool water with pump running. Repeat application until a 1.0-1.5 ppm residual chlorine is obtained. In extremely hot weather or extreme bathing loads, a shock dosage of chlorine may be obtained by broadcasting 1 ounce of this product for every 6,000 gallons of pool water. Be sure to measure pH immediately after application. Adjust pH to 7.2-7.8 if necessary.

Directions for Adding DuraChlor Super 90 to Your Swimming Pool for Algae Removal:

Turn off pump before application. Brush algae spots with a steel brush before adding this product. Sprinkle this product directly over the pool walls and floor on which algae appears. Use approximately 1 pound per 10,000 gallons of pool water. For severe cases, the dosage may be doubled. Filter pump can be turned on after this product has been in the pool for at least 8 hours. Brush pool again with stainless steel brush. Do not use pool until chlorine residual falls below 3.0 ppm.

Product Features

  • 99% Trichloro-s-triazinetrione
  • For White Plaster Pools Only
  • Highly concentrated granular (90% available chlorine)
  • Great standalone product for treating black algae

Technical Specifications

Product CategoryChlorine
Poolweb Item #C002352-PL25
ManufacturerHaviland
Shipping Weight25.0 lb

Troubleshoot Your Water

  • Cloudy Water
  • Green Water
  • Brown Water
  • Eye Irritation
  • Chlorine Odor
  • Calcium Scale
  • Metal Corrosion

Cloudy Water

Cloudy Water CausesSolutionPreventive Measures
High pH Bring your pH into the desired range of 7.4 - 7.6 ppm. Maintain a proper pH level by using Haviland pH Reducer.
Dirty Filter Check filtration system. Backwash if necessary. Use Haviland Liquid Filter Cleaner each spring and fall.
Low Free Chlorine Residual Bring free chlorine into desired range of 1 - 3 ppm. Shock if necessary. Maintain a proper level using one of the Haviland chlorinating products.
High Total Alkalinity Test total alkalinity and adjust accordingly Lower total alkalinity to their ideal levels using Haviland pH Reducer.

Green Water

Green Water CausesSolutionPreventive Measures
Green Algae (hazy water) Shock the pool using chlorine based shock at 1 lb. per 10,000 gallons. Let circulate overnight and then adjust free chlorine residual to 1 - 3 ppm. Add Haviland Algae Kil 50 or Haviland Combat 60 every other week at a rate of 6 oz. per 10,000 gallons
Copper in Fill water (clear water) Use Haviland Rust-N-Scale at a rate of 6 oz. per 10,000 gallons. Let circulate overnight before adjusting chlorine or pH. Add Haviland Rust-N-Scale every other week at a rate of 6 oz. per 10,000 gallons to prevent stains due to copper in the water.

Reddish Brown Water

Red/Brown Water CausesSolutionPreventive Measures
Dissolved Iron or maganese in water Adjust pH to 7.4 - 7.6 range. Use Haviland Rust-NScale. Let pump run continuously until clear. Add Haviland Rust-N-Scale every other week at a rate of 6 oz. per 10,000 gallons.

Eye & Skin Irritation

Eye Irritation CausesSolutionPreventive Measures
Combined Chlorine (chloramines) level too high Shock the pool using one of the Haviland shock treatments. Let circulate overnight and then adjust free chlorine residual to 1 - 3 ppm. Shock treat every other week, after heavy use or rain. Test for free chlorine residual daily
pH level too high or too low Adjust pH by using Haviland pH Increaser or Haviland pH Reducer to bring pH level to ideal range of 7.4 - 7.6 ppm. Test pH level daily and maintain pH in 7.4 - 7.6 range.

Chlorine Odor

Chlorine Odor CausesSolutionPreventive Measures
Combined Chlorine (chloramine) level too high. The cause is NOT too much chlorine but not enough free available chlorine Shock the pool using chlorine based shock at 1 lb. per 10,000 gallons. Let circulate overnight and then adjust free chlorine residual to 1 - 3 ppm. Test pH level daily and maintain pH in 7.4 - 7.6 range.

Calcium Scale Formation

Calcium Scale CausesSolutionPreventive Measures
pH too high/Total Alkalinity too high Add Haviland pH Reducer to bring pH into 7.4 - 7.6 ppm range and to bring total alkalinity down to 100 - 175 ppm. Maintain pH level in 7.4 - 7.6 range. Maintain total alkalinity level in 100 - 175 ppm
Calcium Hardness level too high If hardness level is too high, some water may have to be drained. Add Haviland Rust-N-Scale per label directions. Add Haviland Rust-N-Scale every other week at a rate of 6 oz. per 10,000 gallons.

Corrosion of Metal Parts

Corrosion CausesSolutionPreventive Measures
pH too low/Total Alkalinity too low Add Haviland pH Increaser to bring pH into 7.4 - 7.6 ppm range. Maintain pH level in 7.4 - 7.6 range. Maintain total alkalinity level in 100 - 175 ppm.
Calcium Hardness level too low Add Haviland Water Hardness Increaser to raise the calcium to 180 -275 ppm. Maintain calcium level at 180 -275 ppm.

Shipping & Returns

Shipping Options

This item ships free via freight truck. This means that the item cannot ship via regular transportation because it is too large, heavy or needs to be palletized. Learn more about receiving an LTL shipment.

Standard ground shipments may be delivered sooner depending on where you are located, and the shipping method used to ship your order. Combining multiple items onto the same order can change the delivery date and expedited shipping costs, especially if the other items are not available for immediate shipment. Transit time is calculated in business days and does not include Saturday and Sunday.

Return Policy

This item can be returned within 30 days of order. See return policy for details and how to place a return.

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