Andrew Williams

Andrew Williams


Hi my name is Andrew Williams, owner of Poolschool - formerly Deep Blue Pools.



We are looking forward to the next few months. We are opening our new store in Coin for the new year, it is a great location, right in the middle of Malaga and the coast. We will keep you updated with the opening date and other news. 


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Heatsavr Liquid Pool Cover

heatsavr-family-3dosingHeatsavr Benefits

  • The most cost-effective solution
  • Reduces heat loss by two-thirds or more
  • Completely hassle free - just enjoy your pool!
  • Dramatically extends the swim-season
  • Reduces water-loss
  • hearsavr

    Harmless, non toxic & bio-degradable
  • Transparent - no ugly covers
  • Fits any size or shape of pool - exactly
  • Reduces humidity on indoor pools
  • Works with Salt water pools and Chlorine pools


Easy and

inexpensive to install.

Heatsavr is filter friendly, does not affect the chemical balance (pH, chlorine, alkalinity) of the water, will not damage vinyl liners or any other pool surfaces and is

absolutely harmless to skin contact.

An automatic dosing system ensures that the correct dose of liquid is added to the pool, at the same time each day.

Fully programmable to suit pool size and hours of operation, it only requires a periodic check - to top up or replace the 2 litre bottle.

Does it heat the pool?

Not exactly. A pool warms up in the Spring by storing heat energy. The water gets warmer because of the longer hours of sunshine and higher air temperatures. Meanwhile, it is losing heat through the sides and floor (10%) and from the surface (90%), so it does not heat up very quickly.

When heat-loss is reduced the pool warms faster. Heatsavr™ prevents about 75% of surface heat-loss - more than two-thirds of overall heat-loss.

How It Works

Non-technical version

The very special, transparent and non-toxic liquid spreads, very thinly, right across the pool and stops water evaporating. It is the evaporating water that cools the pool - just like when you wear a wet tee-shirt.

before Before           after After

Technical version

Heatsavr is a bio-degradable liquid, which forms a transparent mono-molecular layer over the surface of a swimming pool whenever it is calm.

For decades, scientists have known that a monolayer (one molecule thick) spread across the surface of a liquid dramatically reduces evaporation and energy loss. Many companies attempted to develop a technology, but until Flexible Solutions developed their patented Heatsavr, which they first introduced to the North American market, no other company had been able to make a monolayer spread reliably and inexpensively or  regroup effectively after the water had been disturbed.

Heatsavr is a mixture of carefully chosen ingredients which automatically float to the surface. The particles of the liquid are attracted to each other and they always try to form a perfect, very thin layer over the whole pool surface. They are individually microscopic - 500 times smaller than the spaces in a super-high-quality Diatomous Earth filter.

Unlike a conventional pool cover, which has to be removed from the pool for swimming, Heatsavr breaks apart when the water is sufficiently disturbed but the monolayer reforms when the water becomes calm again. Consequently Heatsavr adjusts perfectly to changing activity levels in the pool throughout the day. A variable and flexible cover that automatically works whenever and wherever the pool surface is calm.

For the more technically minded – the properties of Heatsavr include a unique spreading mechanism which forms a monomolecular layer by making use of the repulsive forces generated by dissociation of ionic compounds when dissolved in water. Negative ions repel each other, as do positive ions and quickly spread the film-forming agents.

Heatsavr's especially tailored molecules:

  • prefer their feet in water
  • prefer their heads in the air
  • once they are spread out, resist climbing on top of each other
  • have side chains (like arms) that interlock, like riot police, to keep the water molecules controlled.
  • are short lived; biodegrading to air and water within days


Acid Wash

400-Pool-Surround-acid-cleanBenefits Of Acid Washing

  • Removes build-up of calcium and other scale from the pool surfaces
  • Enables the pool-owner to keep the pool sanitised and looking great!
  • Restores the glass-smooth surface to the tiles

Cleaning the tiled surfaces

Non Technical Version

If your pool water has been too alkali, chalk builts up on the tiles like fur in a kettle.

We basically get into the drained pool and de-scale it, leaving it clean and shiny.

This is a dangerous and specialised job and should not be attempted without training and special protective clothes etc.

Technical Version

If the pH in your pool has been allowed to get too high you will almost certainly experience a build-up of lime-scale. This is largely calcium from the minerals dissolved in the pool water and the build-up changes the way the tiles feel - instead of a glass-smooth finish the tiles feel rough and abrasive.

When calcification is severe it is almost impossible to keep the pool clean, sanitised and looking good.

The reason for this is that the surface of the lime scale is pitted with millions of tiny holes. These holes are so small that they can be regarded as 'dead spots' in the pool water circulation and therefore do not receive fresh supplies of chlorine.

Algae spores can take up residence in the holes and proliferate, giving a green tinge to the lime scale.  The next time the pool is super-chlorinated the algae will be killed and turn brown but, locked away in the pores as they are, they will remain as an unsightly brown stain.

The solution to the problem is to drain the pool and remove the lime scale with acid. This is not a job that should be attempted by the average pool-owner as it involves the use of corrosive chemicals which can be hazardous to health.

BillCrossbefore1                 BillCrossafter1       

Before and after photographs from a badly calcified pool in Maro, Nerja, Spain.

Sand Filter damage

One other, perhaps unsuspected, effect of high pH is the deposit of calcium on each grain of sand within the sand-filter.

Sand lumps 3 small

This results in the grains of sand accreting together to form a solid lump of rock, as in the photo above.  The filter is ineffective and the sand must be replaced. Often it is very difficult to remove the accreted sand without damaging the filter body or collector array.  We manage to save almost all of them (taking great care not to damage the delicate plumbing within), re-fill them with Zeolite and give them another 5-7 years of life.

Katchakid Pool Safety Net Costa del Sol

Click Here To See the Video!

Katchakid logo


Blair Essom, CEO of Katchakid, designed the first safety net after the tragic death of a close friend's son, who drowned at a family get-together in 1967.


Blair said, '...everyone was there, but nobody noticed the child fall in........... his death was horrifyingly silent.'

He was shocked to think that he had been enjoying himself while the child was gasping for life.

He determined to find a way to ensure the safety of his own and friends swimming pools, so that other families wouldn't suffer this devastation. Thus, the first swimming pool safety net was created. Blair called it Katchakid.

Over the past 40 years Katchakid has been re-evaluated, re-defined and modified to bring you today the very best in terms of child pool safety.

The world-famous Katchakid Pool Safety Net is now available in Europe.



Poolschool is proud to be 1st in Spain, and 1st in Europe, to bring you Katchakid - the ultimate pool safety net!

Trained Katchakid Technicians are located in: Spain, This email address is being protected from spambots. You need JavaScript enabled to view it. , This email address is being protected from spambots. You need JavaScript enabled to view it. , This email address is being protected from spambots. You need JavaScript enabled to view it. , This email address is being protected from spambots. You need JavaScript enabled to view it. and This email address is being protected from spambots. You need JavaScript enabled to view it. who can install Katchakid for you professionally. If your pool is outside of these areas, a DIY Katchakid may be available. Please contact us for details.

Katchakid Pool Safety Net

Easy to Fit

Only 5-8 minutes to close the pool and make it safe.

Easy to Remove

Only 3-5 minutes to open the pool.

Total security for children and pets around the pool..........Total peace of mind for adults!!

Katchakid Pool Safety Nets have been preventing drowning tragedies in commercial, public and private pools for over 33 years.

More than 350,000 pool nets have been installed throughout the world without a single report of a drowning, (or even a near-drowning) - Katchakid Works!

Katchakid's purpose is twofold:

It acts as a deterrent. The pool is no longer an open magnet to children. They might investigate but lose interest fairly quickly ... It’s a learning process.

They quickly learn that this means 'NO! the swimming pool is CLOSED.'

It serves as a final, impenetrable barrier if the children do manage to get over the fence. If kids stumble and fall in, stretch out for a lost toy or even ride their bikes across it:

  • Katchakid will catch and save them!
  • Kids can’t get through Katchakid
  • Kids can’t get under it.
  • It's the ultimate in child drowning prevention

Key Benefits:

  • Impossible for your child (or pet) to reach the water
  • Impossible for most children under 10 (and most household pets!) to remove, get through or get under the net
  • Affordable peace of mind for you - just open the back door and let the kids run. You can be sure that, whatever else the kids are doing, they are safe because - Katchakid prevents drowning!

Katchakid is available in BLUE for pools - or in BLACK for ponds, lakes and water deposits

katcha1 katcha3 gall13 small
katcha5 katcha7 katcha9
katcha11 katcha13 katcha15

Click The Images For A Larger View

Pool Reforms

Isn't it time you gave your pool some TLC?

Nothing lasts forever and pools are no exception. . .

P1010029 smallWhen a pool is first installed it all looks lovely; the mosaic tiles with their grout-lines full, the blindingly white marble pool surround, the pool equipment all new and shiny; and not a trace of limescale anywhere.

However, a few years down the road those pristine mosaics, the lovely marble pool surround, the sand-filter and the pump begin to look a little tired; even in the most carefully maintained pool.

A slight chemical imbalance during the life of the pool can damage the pool. For example, a too low pH reading indicates acidic water that will erode the grout or, if the pH of the pool has been too high (even for just a couple of weeks), the water can coat the tiles in a layer of unsightly limescale.

Pool surrounds are deliberately designed to be safe, non-slip surfaces - which provides millions of 'hiding places' for dirt and dust and so the surround gradually changes colour to an ugly, murky, grey/brown.

The decorative border at the waterline becomes coated in limescale which absorbs dust, pollen, sun-cream and body oils. These get baked onto the tiles by strong sunlight and the unsightly result is impossible to remove by scrubbing with a pool-brush.

Tiles can and do become chipped, or fall off and get lost, or become detached during vacuuming (these particular tiles usually end up in the pump basket but sometimes they can block an automatic cleaner or a suction line completely).

Missing and/or broken tiles are particularly common on tiled steps, and a broken tile in this area can lead to some nasty cuts to bathers' feet.


Our 'Swimming Pool TLC Winter Make-Over'

The best time to carry out a make-over on your pool is when you have finished with it for the winter.

We offer a full pool reform for 'loved-but-tired' pools, we:

  • Drain the pool
  • Acidwash the pool surround and the inside of the pool to remove limescale/algae
  • Jetwash the same areas to remove loose dirt and soft grout, etc.
  • Completely re-grout the pool walls and floor (or repaint it if it's a painted pool
  • Change the contents of the filter to Zeolite
  • Dismantle, service and re-assemble the pump, renew the pump basket
  • Change the white plastic impulsion jets fittings and skimmer lids, etc.
  • Clean and tidy the pump/filter room or in-ground box
  • Refill the pool from your water supply
  • Balance the pH and water chemistry of the new water

The above treatment will leave your pool looking almost brand-new!

Price: - Starting from just €849 plus IVA

Before                 After       

Before and after Acid Washing

Full Pool Reforms

Many people buy a property with an abandoned pool.  Invariably, the pool needs a great deal of work before it can be used and we can carry out all and any work that is required.

This work almost always includes everything listed in the 'Swimming pool TLC Winter Make-Over' above but may also include:

  • Complete re-tiling of the pool
  • Replacement of the pool surround
  • Repair or replacement of pump, filter, control panel
  • Installation of new heater, cover, roller, etc.
  • Installation of new concrete or ladder steps and/or handrails
  • Replacement of pump/timer control box
  • Installation of pool and/or terrace lighting
  • Installation of Jacuzzi-jets
  • Re-shaping of the steps and/or pool for safety reasons
  • Installation of seating, or play areas for the younger swimmer
  • Construction of a new terrace
  • Anything else required to turn an existing 'swamp' into a dream pool.

Price: - Starting from just €849 plus IVA!

Just a moment!  Isn't that the same price as for a Winter Make-over?

Yes, but some abandoned pools can be brought back to life ONLY with the Winter Make-over treatment.

Other pools may need a great deal more work to return them to service but, whatever the individual case, we offer a fully detailed, written Quotation (not an 'estimate') of the costs before beginning work - and we keep to that price. Please see 'Important Information' below.

Terrace Reforms

We also undertake reforms to poolside terraces and can install tiling, stamped concrete, lighting (LEDs or Fibre Optics), misting systems, sound systems, bars and barbeques, shade sails; you name it!

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Important Information

We only give Quotations. A Quotation is a fixed price, and cannot be altered. We do not offer to give 'Estimates'; an 'Estimate' gives no guarantee of final price. PoolSchool and its predecessor Deep Blue Pools is proud to have never charged more than our quoted price for works undertaken and we never will.

We offer free advice on pools-related problems.

We supply all your pool equipment and consumables at list price - and we deliver.

We look forward to meeting you soon.

We cover Alhaurin el Grande Alhaurin del la Torre Alozaina  Calahonda Cartama Churriana Coin Fuengirola Guaro Tolox Malaga Marbella Ojen Pizarra Torremolinos Yunquera

Contact Poolschool


Parque Empresarial Coín, Nave 46,

Carretera Coín-Alhama el Grande Km 2, 

29100, Malaga,


Office  :: 0034 - 952 594 393

Mobile :: 0034 - 657 081 514


Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

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