Category: Solar Blankets

Pool Covers/Solar Blankets
Posted on

Fact #5b: Week 2 of “How often we fail, in our cover-up plan”

by Garry Long

When planning a new pool or refurbishing an existing pool and surround, the question to start with is not “Do I need a pool cover?” but rather, “What type of pool cover do I need?”

Pool covers are an environmentally responsible part of owning a pool these days, but they are generally purchased after the pool and landscaping has been completed.

Keep your options open, by being smart and planning your pool cover in the beginning, when planning the rest of your pool entertainment area.

Start by asking yourself these questions…

• Will the pool be heated?
• Are there overhanging trees which will drop leaves into the pool?
• Is the pool exposed to high winds?
• Is it more important to reduce leaves, retain heat or reduce evaporation and therefore water loss?

Use the answers to these questions as the basis for choosing the right pool cover for you, so you can plan for it when designing your new pool area.

If you are planning on a fully automated cover, these cost many thousands of dollars and need to be built into the pool structure for best results. While these are expensive, they can make covering the pool as easy as pushing a button. However, if you have lots and lots of leaves, some styles do not keep all the leaves out of the pool, so choose carefully.

If your pool will not be heated and you have existing trees that shed their leaves, then a tie-down leaf cover is probably best for you. But if the pool is heated or you are looking to extend your swimming season with free heat from the sun, a floating pool blanket is your cover of choice.

Now that you’ve decided on the type of pool cover which best suits you, now think about the storage of it. Most floating covers will be stored on a Reel or Roller. These are popular as they are portable and reasonably lightweight. They are as wide as the pool by about half a metre deep. In your planning stage, ensure your landscaping allows enough room for the Reel. It is usually stored at one end of the pool, away from the gate or pool access.

If you have a lot of leaves raining down on your pool, you will likely choose a tie-down, leaf cover. These overhang the coping and keep out all the leaves and twigs, seed and blossom. Leaf covers have fixing points about 1 metre apart, most often fixed into the coping or pool surround. Plan your paving to accommodate these fittings. You need to allow enough space between the waters edge and any change in level, for the cover overlap and the tie-down fittings. A minimum of 300mm is ideal…

A leaf cover is usually rolled up like a tent and often comes with a storage bag. These are usually custom-made to shape for inground pools or readily available in standard sizes for above ground pools.

A properly fitting pool cover makes pool maintenance a breeze. It will give you peace of mind when you’re away for extended periods and have a leaf problem, plus you will help the environment by saving lots of water and pool chemicals. Be smart, and cover up…
Pool Covers/Solar Blankets
Posted on

Fact #2: Pool covers save water – but how much?

by Garry Long
One of the questions I am often asked is, “How much water does a pool cover save”? We all know that pool covers save water by virtually eliminating evaporation when they’re on the pool, but how much evaporation does your pool have? It’s a valid question, and the answers can vary quite dramatically, depending on several different factors.

It would be perfectly normal for an ‘average’ sized pool to lose anywhere between 2mm and 10mm of water to evaporation every day.  Location, wind speed, humidity, shade, sunlight, air temperature and water temperature all have an impact on evaporation rates, and so does the size of your pool, so there really is no ‘average’ answer.

If you’re really keen, you can look at statistical averages on the government weather bureau website (BOM) to see rates of evaporation in your area, and then make some sort of calculation from there. It’s a complicated process though – I’ve been through the exercise with my own pool and estimate that without a cover, I’d experience evaporative water loss of over 73,000 litres per year! Isn’t that a staggering amount?
This means it’s really easy to justify why all pool owners should use a pool cover and just how much precious water they will save. to see how much we can contribute to sustainable water usage for Australia’s future, today!
Pool Covers/Solar Blankets
Posted on

Fact #1: what you must know about Salt Chlorinators and pool covers

by Garry Long

One of the best inventions for pool owners is the salt chlorinator. When these were invented, they reduced the weekly cost of adding chemicals to the pool and, most importantly, they were an automatic dosing system which meant less time spent maintaining the pool.

Fact #1: These units are not fully automatic. When running, they are constantly dosing your pool, so you still need to monitor the chlorine level yourself. Most pool owners think that these automatic chlorinators are “set and forget”, but they are wrong! Checking the correct level of chlorine in the pool is critical for the health of your family.

It’s also important for the life of pool accessories too. For example, a pool cover is so efficient at reducing the amount of chlorine needed, that the chlorine production on the chlorinator should be turned down by two thirds, so it is only producing around one third as much chlorine as when the pool is uncovered. If the chlorinator is not adjusted, the level of chlorine in the pool gradually increases to a point where it starts to attack the pool cover and pool cleaner and is not healthy for swimming.Obvious signs of an over-chlorinated pool are:

  • The underside of the pool cover looks bleached.
  • Pieces of the pool cover start to flake off and you find them in the pool skimmer.
  • The automatic pool cleaner skirt and parts get sticky and discoloured.
  • Pool accessories that are in the water start to perish (like the cord attached to a thermometer).

How can you fix this? Unfortunately, once a high chlorine level has damaged your pool cover or pool cleaner, the damage cannot be reversed. But, you can easily check the chlorine level yourself with a standard test kit — or even easier, by using testing (dip) strips, then adjust the chlorine output to suit.

The good news for the future is that self-adjusting, salt chlorinators are being developed and released into the swimming pool market. These innovations check the chlorine level at regular intervals and automatically adjust the chlorine output to maintain an ideal, continuous level. Look for these in your pool shop or online, if you want the convenience of not having to check chlorine levels yourself, and to avoid damage to your pool cover and pool cleaner.

1 2