FAQs

For your convenience, our most common customer questions are answered right here.

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Q: Why should I use the Sustain Pool Care System?

A: Over 30 years of proven performance has shown that the Sustain 3-Part System provides you with an effective and easy-to-use pool care routine. The use of other chlorine products often results in too little or too much chlorine. Sustain, The Intelligent Pool Care System, is formulated and designed to deliver chlorine more evenly than conventional pool care chemical systems. Also, as part of this System, Sustain Summer Shield is the brains of the program. This product actually holds backup chlorine in reserve, and only releases it when it senses your pool's level of chlorine protection (against algae and bacteria growth) has been depleted.

Q: How long should the re-circulation pump be operated?

A:The Association of Pool & Spa Professionals (APSP) sets guidelines for pump and filter sizing that allow circulation flow to achieve at least two water turnovers per day. Operating your pump for 12 hours per day will ensure one turnover. Good circulation is necessary for filtration and dispersing the sanitizing chemicals throughout the pool water. Note: Set the return jets to optimize the circulation pattern and to minimize dead spots where algae can bloom. The recommended angle for jets is 45° downward.

Q:What is algae, how do I know I have it, and how do I get rid of it?

A:The potential of algae is always present, so its appearance is an indicator of one or more pool water deficiencies. In some cases, the deficiency is obvious, other times you may need to review the basic checklist: •Is the pool equipment, pump, and filter operating properly? •Is the circulation pattern of the pool water minimizing dead spots? •Are the pH and Free Available Chlorine (FAC) in the recommended ranges?

There are four general classes or types of algae found in swimming pools:

  1. Green algae is free-floating and turns the water cloudy and green. This type is the most common and easiest to clear up. Use Sustain Energizer Tablets or Sustain Shock Treatment according to label instructions. Circulate continuously for 24 hours, then retest the water for pH and FAC. Adjust pH to 7.0 - 7.2 and repeat application of Shock if algae color is not gone. Cloudiness may require another 24 - 72 hours of continuous circulation. (Tip: Watch the filter back-pressure and backwash/clean the elements as needed to maintain good circulation and to physically remove as much dead algae and debris as possible. Green algae exerts a tremendous chlorine demand, so the more that can be removed through filtration, the faster the chlorine will overcome the algae and the faster you'll clear up the problem.) If the pool water color doesn't improve after two applications, take a sample of your pool water to your Sustain Authorized Dealer.
  2. Yellow algae is sometimes called mustard algae and appears on the pool surfaces as a fine dust. Typically it is seen first on surfaces that don't receive direct sunlight. This algae is easy to brush off, but it frequently returns. Most pool experts agree that this type is the most difficult algae to control. Use Sustain Shock Treatment according to label directions and thoroughly brush the pool surfaces. Cleaning the filter and other equipment is especially important in controlling Yellow Algae. Circulate continuously and back-wash the filter, cleaning the element as needed to maintain good circulation. When the problem is under control, backwash the filter, and clean the element regardless of the back-pressure/flow rate. This will rid the pool and equipment of any algae that may remain trapped in the filter.
  3. Black algae grows on the pool surfaces as dark spots. These colonies of algae will usually form in areas with less circulation. Black algae will feel slimy and will brush off with some effort. The algae grows into the pool surface and will be difficult to completely remove. Use Sustain Shock Treatment according to label directions and brush the affected areas frequently. Circulate continuously and back-wash the filter, cleaning the element as needed to maintain good circulation. When the problem is under control, backwash the filter and clean the element regardless of the back-pressure/flow rate. This will rid the pool and equipment of any algae that may remain trapped in the filter.
  4. Pink algae is actually bacteria. It forms colonies that have a slime layer. Pink algae is common in pools located near the oceans and Gulf waters, but can also show up inland, especially when swimmers have recently returned from vacationing on the coast. Use Sustain Shock Treatment according to label directions and brush all affected areas thoroughly and frequently. Wash all swimsuits and toys with dilute bleach. Circulate continuously and back-wash the filter, cleaning the element as needed to maintain good circulation. When the problem is under control, back-wash the filter and clean the element regardless of the back-pressure/flow rate. This will rid the pool and equipment of any colonies that may remain trapped in the filter.