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Maintaining your pool water and coating for maximum life

Supplier: Hitchins Technologies Pty Ltd
24 September, 2010

Now that you have a “new” pool coated with EPOTEC a few simple techniques will keep it looking great for years.

EPOTEC is designed to provide a long lasting, functional and protective finish, while looking good. As with all products, a longer life will be achieved when it is looked after correctly.


EPOTEC should be allowed to cure for 5 (Summer) – 7(Winter) days before filling the pool. This is to allow a full cure to happen before subjecting it to chemicals. After the first 6 hours or so of application any rain that falls on the EPOTEC will have little impact and may be left in the pool unless it’s dirty water, in which case it may stain the new surface and should be removed.

Cold over night conditions (dew), high humidity and/or frosts may cause a white blooming on the surface, within the first few days. Leaking pipes and valves may create the same effects.

This is aesthetic only and will not impact on the performance of the EPOTEC. It will look unsightly and can be removed, though it will usually wear off over 3 months or so, once pool is in service. To remove residues use a Scrotch Brite Pad (or similar) and a mild abrasive like Ajax or Vim. It may slightly dull the surface. If hard to remove all residues and it’s aesthetically not acceptable a reapplication of a coat of EPOTEC will be required.

Do Not enter pool until it’s sufficiently cured, usually 16 – 24 hours after any application.

Before Filling

Any leaves, animals, insects should be removed as soon as possible so they don’t stick or stain the curing EPOTEC. Remove by careful scraping, sanding or washing. Leaf stains usually disappear once pool is in service. Be careful when accessing pool as coating will be slippery.

Filling and Chemicals

Check that the Hydrostatic valve (if fitted) is working correctly. Fill with clean water. Allow to stand 24 – 96 hours max, then add chemicals (inc Salt) making sure they are well diluted first. Then mix into the pool water completely. Any chemicals that are added directly may sit on bottom and result in concentrated chemical attack or stains and reduced life expectancy to the EPOTEC.

Follow professional advice to get pool into the correct chemical balance.

Pool Water Maintenance

Whether you care for your pool yourself or use a pool service professional, you should settle for nothing less than the best, for your water (and your pool), at all times.

For maximum life of the coating, the pool water quality should be maintained continuously in accord with accepted pool water management practices and the following criteria;

  • pH 7.4 -7.8,
  • Water temperature between 5 – 35 Deg C
  • Total Alkalinity 80-120 ppm (mim) to 160 -180 ppm maximum
  • Chlorine levels 2 – 3 ppm (parts per million)
  • Calcium Hardness should be closely monitored and kept within 270 – 330 ppm
  • Pool regularly cleaned in accord with generally accepted practice,
  • Pool chemicals to be correctly mixed and not dumped into pool,
  • Pool remains full of water

If having your pool professionally maintained then make sure they set the testing equipment to painted surfaces, not any other. Otherwise incorrect chemical dosage may result, shortening the life of the Epotec.

Also Total Alkalinity should be carefully maintained to prevent a powdery surface developing with attendant “pick up” on hands and feet and a shorter life

Surface Cleaning:

The EPOTEC is resistant to surface contamination and fungal growth. However over time the surface will tend to change with the attachment of slime and fat build up. This can be removed easily by giving the surface a “wash” with a broom or brush. The most affected areas will be at the water level, and within 300 mm of it. Body fats, suntan lotion and other matter that floats on the water surface will tend to stick to the sides of the pool. A regular scrub (bi monthly and more often in times of high usage) for this area should be a part of the maintenance program.

Calcium Build-up:

One of the by-products of pool chemicals is the formation of calcium deposits on walls and floors. Calcium comes from the hardness of water, Salt, or the “Chlorine 65%”, in previous section. This can usually be seen as a whitish “scum”. It may be noticed if you wipe the surface with your hand and you see a white “cloud” in the water. The EPOTEC will be glossy underneath. It should be removed as can act as an abrasive when pool cleaners in use and reduce the life of EPOTEC.

It can be removed by using a flocculating agent. See your pool shop for specific details.

Colour Change:

EPOTEC being a functional epoxy coating is modified by the UV radiation from the sun. It will tend to chalk and loose its colour somewhat. This will happen nearer the surface. Darker colours will change more so than lighter colours. The performance of the EPOTEC is not affected by this, however it will tend to lose some gloss and take on a slight yellow hue.

Little needs to be done to prevent this, though if you have a pool cover, use it to reduce the UV impact on the EPOTEC

Damaged Areas:

In the unlikely event your pool surfaces are damaged and the film integrity of the EPOTEC punctured, there is the prospect of water from the pool getting behind the EPOTEC. This will also allow the pool water with its corrosive salts, chlorine and other chemicals to come into intimate contact with the now unprotected concrete. Chemical attack of the concrete is possible with the result that it will fail, and there by undermine the further integrity of the EPOTEC. Any such damaged areas should be repaired promptly. We have touch up kits for this and they can be used underwater.


To get the best performance from the EPOTEC, look after it well, cleaning it every now and then. Keep the pool water in tip top condition throughout the year.

Also note that chlorine, pool acid, and many other pool chemicals can do great damage to you and your pools health if not used correctly.

You may need to call on other professionals to assist you in obtaining the very best in pool water maintenance.

One web site you may like to visit for more information is SPASA and their Fact Sheets at:

If you need further guidance contact Hitchins TechnologiesPty Ltd