SupportThis is where we answer some queries you may have about your pool.

Providing simple and effective solutions

Now you can access answers to common technical questions and pool problems. Dolphin Pacific recommends that any pool issues be run past by your local Focus pool/spa dealer. Focus dealers are trained in the entire product range and can answer a wide variety of questions specific to your needs and the region.

Common questions asked by most pool owners

These answers are guides only and we recommend you meet/call your local pool professional to discuss your particular concerns.

I think I am losing water. How can I tell?
Water loss through evaporation, backwashing or splash out is common. However, if you feel that your water loss is more excessive than this check out the following:

  1. Check around the equipment to ensure that there are not any wet areas as equipment can develop leaks which will result in water loss.
  2. If you have a vinyl liner check that there are not any tears around the lights, ladders or in corners. Check the ground around the pool.
  3. Inside the skimmer box put a mark where the water is and recheck it a day later. Your pool should not lose more than about 7mm per day.
  4. Fill a bucket with water and place a mark where the water level is. Leave next to the pool for a day. The amount of water loss from the bucket should be similar to the water loss from the pool.
  5. If there is a noticeable difference you will need to call a leak detector to ascertain where the leak is coming from.

I have stains appearing all over my pool. Can I get rid of them?
The first step is to ascertain what is causing the stain. Staining can sometimes be caused by incorrect water balance. Check your water balance and adjust if necessary to the correct levels. Stains can also be caused by metal contamination and tannins from leaves. The following is a checklist to assist in determining the likely source of the problem:

  • Water is emerald green in colour – Copper
  • The walls and floor have turned blue-green or black – Copper
  • The water has a greenish yellow tint – Iron
  • The walls and floor have a rusty colour – Iron
  • The areas where the leaves settled have gone brown – Tannins

The longer a stain is present in a pool, the harder it is to eliminate. Contact your nearest Focus Products Authorised Dealer for information on the treatment and prevention of stains.

My kids hair sometimes goes green when they use the pool. How can I stop this happening and does anything remove the green?
Blonde hair particularly can experience this problem. It is generally caused by incorrect water balance, excess copper or high chlorine levels. Pay particular care to your water balance to eliminate the likelihood of it occurring.

It can be removed from the hair by any of the following methods:

  • Dissolve a couple of disprin in a glass of water and rinse the hair. Follow with your usual shampoo and conditioning treatment.
  • Wash hair in Sunlight soap and follow with a conditioning treatment.
  • Rub tomato sauce into the hair and then shampoo. (Kids love this one!)

My pool has hard white deposits forming on the surface. What are they?
Pools can get calcium levels that build up over a period of time, particularly those pools utilising Calcium Hypochlorite, which can cause hard scale to form on the surface of the pool. New pools particularly can have a scaling issue as they “adjust”. In areas of high water hardness the problem is unavoidable. To prevent scale from forming Aquashield 3 should be added every three months.

This will inhibit calcium scale and assist with the cleaning of the salt chlorinator cell. To remove deposits that have already formed it will be necessary to conduct a treatment involving Hydrochloric Acid and Aquashield 3. Contact your nearest Focus Products Authorised Dealer for assistance.

How long should i filter my pool for?
This is dependent on which State you live in (water balance is affected by temperature), where the pool is situated (shade or no shade), the bather load of the pool, the size of the pool, the sanitation process you are using and other factors. As a rough guide in tropical climates during the warmest months of the year the recommendation would be a minimum of 8 hours up to 12 hours separated into 2 cycles.

This can be reduced back to 2-3 hours during the cold months or non-swimming times. Inadequate filtration time is the primary cause of cloudy, green or unsanitary water. Check with your nearest Focus Products Authorised Dealer for the correct advice on running times for your pool.

Problem Solvers

Here are some problem solvers that should help you get swimming again sooner. (Please consult your pool professional for the best advice and support that are specific to your pool’s problems.)

I have blackspot algae all over my pool
This is a very common problem particularly with pebblecrete pools running on salt chlorination. The following treatment will help in most cases. If the problem is extreme and the pool surface is white plaster, tile or natural pebblecrete ONLY granular blackspot remover may be used. DO NOT use Granular Blackspot if the pool surface is coloured as bleaching will result.

  1. Adjust the pH of the pool to 7.4-7.6
  2. Using a stainless steel brush vigorously brush the blackspot so that the “wax” coating protecting the root system can be penetrated by the algicide.
  3. With the pump and filter running add Focus Blackspot and Longlife Algicide following the label directions to ensure the correct dosage for your pool.
  4. Allow the pool to circulate for a couple of hours after application.
  5. The blackspot algae will turn grey and start to drop down to the bottom of the pool. Vacuum visible algae to waste and resume normal filtration.
  6. Repeat the treatment if necessary.

My kids are complaining that their eyes are stinging and the pool really smells of chlorine.
Over time your swimming pool water becomes dull and irritating as it will accumulate a build-up of waste products. The waste products come from rain, insects, hairspray, suntan lotion, make-up, urine and other wastes introduced by either the environment or swimmers. These waste products “tie up” your chlorine making it inefficient and causing a pungent “chlorine” odour.

  1. Adjust pH of the pool water to between 7.4 to 7.6
  2. With the pump and filter running add one bag of Shock and Clear (per 50,000 litres of pool water)
  3. Run the filter for at least one hour.
  4. If the problem still persists contact your nearest Focus Products Authorised Dealer and ask for a Free and Total Chlorine test. This will determine if more applications are needed.

My pool walls and floor are green and slimy.
The first question to ask is whether the growth can be removed through brushing as this will confirm whether or not the discolouration is caused by an algae growth. If the answer is yes then apply the following treatment:

  1. Adjust the pH of the pool water to 7.4 to 7.6
  2. Brush the walls and floor of the pool to stir up the algae
  3. Treat the pool with at least one bag of Shock and Clear (per 50,000 litres) by pouring through the skimmer box with the pump and filter in operation
  4. Pour 2 litres of Focus Algicide 20% around the edge of the pool.
  5. Follow the algicide treatment with either 200ml of Waterpolish or a sachet of Ultrasheen.
  6. Run the filter continuously observing the pressure gauge. Backwash or clean the filter if the pressure exceeds Manufacturers recommendations.

My pool water is cloudy
The first thing to check is that the filtration system is working effectively and does not need chemically cleaning. If the filtration is working effectively the following should be checked.

  1. Check the pH of the water is between 7.4 to 7.6. If the pH is high this can cause water to be cloudy. Adjust pH accordingly.
  2. Check that the pool has maintained a consistent chlorine reading over the past few days. Reduced chlorine levels can also cause cloudy water. If the chlorine level has not been consistent then apply a bag of Shock and Clear (per 50,000 litres) by pouring through the skimmer with the pump and filter in operation. If the chlorine level does not hold after the first treatment then repeat the process until the chlorine residual is maintained.
  3. If the chlorine and pH levels are OK then the cloudy water is probably due to suspended particles in the water. Add 200ml of Waterpolish to 50,000 litres of pool water to restore and maintain sparkling water. Run filter for at least 8 hours. Backwash the filter if pressure reaches the maximum recommended by the Manufacture

My pool water is green and cloudy

  1. Adjust the pH of the pool water to 7.4 to 7.6
  2. Brush the walls and floor of the pool to stir up the algae
  3. Treat the pool with 2 bags of Shock and Clear (per 50,000 litres) by pouring through the skimmer box with the pump and filter in operation
  4. Pour 2 litres of Focus Algicide 20% around the edge of the pool.
  5. Follow the algicide treatment with either 200ml of Waterpolish or a sachet of Ultrasheen.
  6. Run the filter continuously keeping an eye on the pressure gauge. Backwash or clean the filter if the pressure exceeds Manufacturers recommendations.

I cannot keep chlorine in the water

  1. The first thing to check is that the pH is in range and that you have Stabiliser in the water. If not, adjust the pH and add stabiliser.
  2. If you have added large amounts of chlorine to the pool and are still unable to get a chlorine reading it is possible that the chlorine is “bleaching” out your test tablets. Dilute the sample with tap water (4 parts tap water and 1 part pool water) and retest. Remember if you get a chlorine reading to multiply the result by 5 to be accurate.
  3. If the test is not being “bleached” out then the water has an organic demand. This will require double or even three times the normal shock dose of chlorine to eliminate.
  4. Add 2 kgs of Focus Stabilised Chlorine (per 50,000 litres of pool water) to the pool with the pump and filter in operation.
  5. Run the filter for at least six hours.
  6. Retest and repeat the treatment with a kilo of stabilised chlorine at a time until the chlorine residual is maintained.