Filtering Hours

Backwash & Rinsing

Remove Debris

Maintain Levels

Choose a Sanitiser

Correct Filtering Hours

In general, we recommend that you filter for:

12 hours per day in summer, and

6-8 hours per day in winter

Adjust your summer filtering hours to suit your pool size…

In winter, you can reduce the filtering hours by half.

Filtering times measured in Hours

Pool Size
Filter Size:2 Bag
Pump Size: 0.6kw
Filter Size: 3 Bag
Pump Size: 0.75kw
Filter Size: 4 Bag
Pump Size: 1.1kw
10000 2 2 1.5
15000 3 2.5 2
20000 4 3 3
25000 5 4 3.5
30000 6 5 4
35000 7.5 5.5 5
40000 8.5 6.5 5.5.
45000 9.5 7 6
50000 10.5 8 7
60000 13 10 8
70000 15 11 9.5
80000 17 13 11
90000 19 14.5 12.5
100000 21 16 14

Example:

 

Ave pool size = 50,000L, 0,75kW pump and 3 bag filter.
Filtering hours in summer = 8 hours, in winter = 4 hours

How To Find Out What Pump Size You Have?

Just take a look at the actual pump you have.

It will indicate the kW of the actual pump.

Then based on the volume of water your pool holds,
use the table above to find out the correct
amount of hours you should filter for per day.

Why you need to Backwash and rinse the Filter?

When you filter your pool, a lot of dirt and debris is caught in the filter sand. Your filter will become clogged and will need to be backwashed and rinsed to clear it. You will need to do this every 2 weeks or when your automatic pool cleaner moves slowly around your pool.

How to Backwash and Rinse the Filter?

When you filter your pool, a lot of dirt and debris is caught in the filter sand. Your filter will become clogged and will need to be backwashed and rinsed to clear it. You will need to do this every 2 weeks or when your automatic pool cleaner moves slowly around your pool.

Here’s how:

Switch the pool pump off and disconnect the automatic pool cleaner.

Clear both the weir and pump baskets of any debris like leaves or grass.

Set the multiport valve onto the ``backwash`` position.

Switch the pump back on for 2 minutes or until the water in the sight glass runs clear. Then turn the pump off.

Set the multiport valve onto the ``rinse`` position

Switch the pump back on of 20 seconds to recompactthe sand in the filter. Then turn the pump off.

Set the multiport valve onto the ``filter`` position.

Reconnect the automatic pool cleaner and turn on the pump to resume normal filtration.

Remember to “rinse the filter after backwashing
to recompact the sand in the filter
to ensure effective filtration.

Consider cleaning your filter sand once a year
using HTH® Color indicator Filter cleaner.

Pump and Weir Baskets

Pump and weir baskets that are full restricts water flow through the pump and filter, and puts unnecessary strain on the pump.

Remove debris Frequency
Clear pump and weir baskets of leaves and debris. Weekly.
Brush pool walls to dislodge algae and dust particles and clear floors of debris. Weekly.

Consider installing a leaf catcher device to
prevent floating debris like leaves from
sinking to the floor of the pool.

To reduce chlorine consumption, remove debris
from the surface and the floor of the pool –
do this on a daily basis if possible

If the pump is below the water level in the pool,
then turn the multiport valve to closed before
opening the lid of the pump basket

For a sparkling blue pool that is fit to swim in, you must maintain the correct levels in your pool water.

Levels Recommended Range Frequency Benefit Which HTH products to use
pH 7.2 -7.6 Weekly Prevents red eyes and itchy skin
Total Alkalinity 80 - 120ppm Monthly Prevents damage to lining & fittings
Stabiliser/CYA <50ppm At least once a season UV protector which helps to keep chlorine in pool water.
Chlorine 1 - 3ppm Weekly Kills germs and algae
Copper/Iron 0 Once per season Prevents staining

A sparkling blue pool requires that
you maintain the levels shown in the
table above and filter the pool water
for the correct number of hours.

Sanitisers work best when the pH
of the pool water is within the
recommended range of 7.2- 7.6

Choose a sanitiser that suits your lifestyle

Daily Weekly Monthly
Dose daily or every second day… Dose weekly for 4 weeks… Dose monthly…
Tip: Tip: Tip:
Test and correct your pH. Test and correct your pH. Test and correct your pH.
Dose in the early evening. Turn a green pool blue by adding the full pack. In extreme conditions, add HTH® Shock it or x3 your normal dose of HTH® Granular Chlorine
In extreme conditions, add an extra weekly dose.