How to choose a sand filter for swimming pool?

How to choose asand filter for your swimming pool? Whether it's a residential or commercial, in-ground or above-ground pool, there are three types of pool filters and to find out which one is best for you, you need to know a few things, including filter size, how it works , maintenance, efficiency and price.

This guide is made for you. With this guide, you will have a list of considerations and features to look into before making your decision.

Here are our 7 tips for choosing a good poolsand filter

1. Determine the characteristics of your pool (Volume, Surface, flow)

If you plan to order a sand filter, it means that you know the elements that characterize your pool, such as: the volume of water, the flow rate and the size of the pool.

However, this data is provided by the manufacturer, otherwise here is how you can determine the characteristics of your pool yourself:

Volume and area.

Swimming pools can have many different shapes.
However, there are two common types: rectangular and round.
Depending on which one you buy, make sure you have calculated its size correctly using the correct mathematical formula.

Rectangular pools are by far the easiest to measure. Just multiply its length by its width.
Area = L x W

If you choose a round pool, perhaps a spa or a small kiddie pool, the calculation is to take the radius of the circle, raise it to the power of two, then multiply the product by 3.14. Area = 3.14 x r2

Find the volume of water in the pool. Pool volume = Area x average pool depth.

Debit.

Next, use the volume of your pool to determine how much water can pass through your filter in about a minute.

This is called "throughput". The flow rate differs depending on the type of pool you have.
Be sure to do your calculations with this factor in mind to get the most out of the filter you are using.

To find the flow rate your pool needs, take the maximum volume of water your pool can hold (this amount can be found when you purchase your pool) and divide it by 360.

This will give you the number of liters of water that pass through your filter in one minute.

It is best to purchase a slightly oversized filter for your pool to ensure maximum efficiency.

2. Know your pump flow rate

All circulation, cleaning and filtration operations depend on the operation of the main pump, and without it, the water stagnates (which means that the filter also does not work).

Too little or too much flow and the filter will not work properly.

3. Filter size

The space your sand filter takes up is directly related to the size of your pump.

If the filter is too small, the pump will experience additional stress as it tries to push water through the filter and encounters an obstruction, causing friction.
This can eventually cause the pump to stop.

Taking into account the size of the filter , you can choose between a sand filter with a top valve or a sand filter with a side valve, which allows you to empty the sand filter without disassembling the valve.

4. The material

The resistance of your sand filter largely depends on the type of material it is made of. Polyester sand filters are more durable than plastic ones.

5. filter media selection

The most important part of a sand filter is the sand itself.

Sand is the most popular choice on the market because it is durable and easy to maintain.
The sand provides reliable and predictable results. The solids sink into the sand layer.

Once some of the dirt is trapped in the sand layer, finer particles can be filtered out.

To be effective, all sand particles should be about the same size, usually 0.4 to 0.6 mm.

The most common material for sand filters is class 20 silica, which forms a very dense network and can filter particles down to 20 microns.

The downside is that the sand hardens and calcifies over time, creating channels through which water can flow unfiltered.

Sand should be washed frequently in commercial facilities and at least once a week in busy public pools.

It is generally recommended that the sand be replaced every 5-8 years as the particles deteriorate over time.

Other materials can also replace sand, such as:

Zeolite can filter particles down to 5 microns and has a much greater filtering effect than sand.

The glass filter filters particles down to 9 microns, much more than sand.

6. Branding your sand filter

The Germans are known for the quality of car engines they produce. The same goes for sand filters. A sand filter from a reputable company guarantees the efficiency and durability of these filters.

7. the price

Sand filters are popular for several reasons. First of all, many pool owners appreciate that they are affordable.

This is the cheapest type of filter money can buy, and it can last up to 5 years without needing to be replaced.

Finally, the swimming pool sand filter is a high quality filtration system.
Unlike other filter systems, this type of filter retains both large and small dirt particles.

Here are the disadvantages you should consider before choosing a sand filter. A sand filter requires regular maintenance.

You should clean the filter weekly by backwashing it for about 5 minutes. Otherwise it may clog and put increased pressure on your pump, which can affect your electricity bill.

Find all the sand filters by clicking here.