Sand filter Acis
Good water filtration is important for good water quality.
The Acis sand filter offers a choice of side or top mounting. Depending on your possibilities and own preferences, you can choose which filter best suits your pool.

The basis for your clean pool
The filter and pool pump are the basis for obtaining clean filtered water.
To obtain and keep the water clear and clean it is important that the pool water is pumped through a (sand)filter.
If you would not filter the water, bacteria, algae and fungi get a chance to develop in the pool water and adding products to your pool water is not very useful.

Maintenance of a sand filter
A sand filter should be backwashed (at least every three weeks, but this can also be more) and after 5 years the sand from the filter should be replaced by new sand.
If the sand filter has not been circulating for a long time, the sand will start to stick together and you will have to replace the sand.
Besides backwashing and replacing the sand you should also put superflock plus in your skimmer. Superflock plus is a candle-shaped flocculant used in sand filters for effective prevention and removal of water turbidity. Due to its patented formula, superflock plus dissolves slowly, resulting in a long-lasting effect. Use superflock weekly for optimum results.

What do you put in the sand filter?
When the sand filter is delivered, it is always stated what it is recommended to put in the sand filter. You can put sand, glass filter media or flint in the sand filter. Sand and flint come in different sizes. To determine what and how much you should add to the sand filter, it is best to look at the paperwork of the sand filter. Sometimes there is a choice between glass or sand, in which case you can of course choose for yourself.

Sand filter operation
In a sand filter the pool water enters the sand filter at the top and sinks down through the sand. Because the water sinks down along and between the sand, dirt from the water stays behind with the sand. This is how the water is filtered.
Because the water descends through the sand, a lot of dirt remains in the sand after a while. So in order to clean the sand, you have to perform a backwash (rinsing).
By performing a backwash (every three weeks), the dirty water is pumped in the opposite direction and the water goes to the sewer or to another drain.
After 5 years you should replace the filter sand with new sand.
If the sand filter has not been circulating for some time, the sand will start to cling together and you will naturally have to replace the sand. The amount and type of sand to be used is always indicated on the sand filter.




The different settings of a swimming pool sand filter
There is always a six-way valve on a sand filter. Six-way valve because there are six different positions, operating modes possible with the sand filter.
Please note: If you change the mode, the pump must always be switched off!
If you don't do this, your pump may fail.

1. Filter: Filtering the pool water. The water goes through the pump to te sand filter. The clean filtered pool water then exits the sand filter back into the pool.
2. Waste (Empty): This is to drain all the water out of the pool. This is only necessary when the pool is very dirty and needs a thorough cleaning.
3. Backwash: 'Backwash the water'. This is to clean the sand filter. The water goes out in the opposite direction (into the sewer or another place).
To backwash, you must first turn off the pump! Then first set the 6-way valve to backwash and switch the pump on. The water now flows in the opposite direction. Backwashing takes 1 to 3 minutes. If you look through the sight glass of the sand filter and the water is clear again, it is sufficient.
4. Rinse: The six-way valve shouldbe set to this position immediately after backwashing. You do this for 30 seconds. In the rinse position, the water goes from the top to the bottom while it is discharged into the sewerage. This way all the sand comes back into place.
5. Circulate: This position is to mix certain products with the pool water as quickly as possible. The water is drawn in by the pump, but does not pass through the sand filter.
6. Closed: Now all outlets are closed. You must now turn off your pump as quickly as possible, because the pressure builds up rapidly. The closed position is mainly used when working on the sand filter.

In short, the 6-way valve is usually on the 'filter' position.

How long do you have to filter the pool water?
The more your water is filtered, the better your water quality. This is very clear.
But how long should your filter run?
Well:
The outside temperature is less than 20°C, let the filter run for 12 hours.
The outside temperature is more than 20°C, run the filter for 24 hours.
Tip: Set the filter operating time with a clock. So you can choose to let the filter run overnight.

Filter pump and sand filter separately
Suppose you already have a separate filter pump and sand filter, but the filter pump breaks down.
Then you can also buy only a filter pump from us and vice versa, if you only need a sand filter, you can also find only the sand filter with us.
There are various brands of filter pumps and sand filters available, such as Trition, Starline, PPG, SuperFlo, Ultraflow,...
For more information you can find the various pumps and filters on our site or you can always reach us by mail info@stesha-wellness.com or feel free to visit our shop in Houthulst.

How much flow rate should my filter or pump have?
To know how much flow rate your swimming pool filter and pump must have, there is a general rule:volume of the swimming pool in cubic metres (m³) divided by four.
So: number m³ : 4 = the necessary flow rate
Example: 18m³ : 4 = 4,50 m³/h For this you must then take a pump and/or a filter that is at least as heavy, certainly not lower! It is always better to have a margin.
Hereby you are sure to have enough and the more the water is filtered, the better the quality of the pool water.