Frequently Asked Questions

Why do I need to backwash the filter and how often should this be done?

Backwashing reverses the water flow through the filter which causes the debris and pathogens caught by the filter media to be disturbed. This debris is then discharged to waste and the filter operates more efficiently once again. A domestic pool should be backwashed for 3 minutes at least once per week and then rinsed before setting back to normal filtration. If the water quality deteriorates then you may need to increase the backwashing frequency.

What are the correct levels for free chlorine & pH?

Free chlorine residual should be between 1 - 3ppm for correct disinfection with an ideal level being between 1.5 - 2.5ppm. The effectiveness of the free chlorine is governed by the pH to a fair extent so it is important to maintain the pH in the range 7.2 to 7.6 - with 7.3 being an ideal level for optimum sanitisation levels and bather comfort. If the free chlorine level is ever above 5ppm it isn't safe to use your swimming pool until the chlorine residual decreases to safe levels.

Should I use Stabilised Chlorine as a sanitiser for my indoor pool?

Most definitely not. Chlorine is combined with cyanuric acid to form what is known as a 'stabilised' chlorine compound . This type of chlorine is ideal for use on an outdoor pool as it helps to stabilise the chlorine level in the pool and combat leaching that is caused by sunlight. If you do use this type of chlorine in an indoor pool, you will eventually end up with 'chlorine lock'. The only way to resolve this situation is via dilution which could result in needing to drain the majority of the pool and re-filling with fresh water!

My pool has a lot of air bubbles near the inlets when the pump is running. Is this a problem?

Air Bubbles near the inlets suggests that the pump is sucking in air at some point, which means that the filtration system is not working at full efficiency. Switch off the pump - check for leaks on the suction side of the pump, check the pump cover and gasket. If you can not identify where the air is entering the system call out a qualified pool engineer.

My pool keeps going green & cloudy & I have been told that it is "locked" - What do I do?

If your pool is "locked" the chlorine ceases to have any effect because there is too much stabiliser in the water. The most effective way of unlocking your pool is by draining large quantities of water from the pool and replacing with new unstabilised water and to stop using stabilised chlorine in the pool. NB. Do NOT drain the pool without the guidance of a qualified pool engineer.

My liner pool seems to be losing water. How do I find the leak?

First check that the waste valve is closed in the plant room and that water is not being lost there. Then vacuum the pool thoroughly and slowly looking for a cut or tear as you move the vacuum back and forth. Also, you may want to let the water level fall to a point where it stops which will also indicate where to look. If you do not succeed - ask advice from a qualified pool engineer.

My vacuum does not work very well - the suction is very poor!

Empty the pump basket and backwash the filter before vacuuming. Also, if you have a vacuum point - turn off the main drain and skimmers and test the suction of the vac point carefully with your hand. If the suction is still poor - open the skimmer valve and close the vac point and test your suction in the bottom of the skimmer. If this is still poor, consult a qualified pool engineer.

What does the Chlorine stabiliser do?

If you have an outdoor pool - Chlorine will be lost fairly quickly on a sunny day. The stabiliser helps to lessen chlorine loss and will save you money. Be sure you do NOT over stabilise your pool.

We have inherited a hot tub which uses bromine. How do we test for bromine and what levels should it be?

Test for bromine with either bromine test strips or a comparator test kit using DPD No 1 reagents. The correct range is 4 - 6 ppm.

How often should I drain my hot tub?

Hot tubs run at fairly high water temperatures and tend to remove oils from a persons skin which settle on the surface of the spa and in the filter. Pathogens can also build up within the water and pipework over time. To maintain a good regime, it is advisable to drain and thoroughly clean your Hot Tub every 2-3 months and even more so if used heavily.

My pool smells of chlorine - What should I do?

Immediately test your chlorine & pH Level - ensure that the pH is within the range 7.2 - 7.6 (giving optimal effectiveness for chlorine disinfection) & then adjust the chlorine level to bring it into the normal range

How should I maintain my Hot Tub cartridge filter?

A cartridge filter collects all of the contaminants that are present within your Hot Tub water. It is essential that you maintain a good cleaning regime to keep these in pristine condition. They should be removed and cleaned at least once weekly. Once removed, hose down with a standard hose pipe - DO NOT pressure wash - and soak in a proprietary cartridge cleaner solution in a bucket of warm water. We recommend your filters being changed every 6 - 12 months.

Am I able to clean the internal pipework within my Hot Tub?

The answer is yes. We have specialised products available that aid in the removal of Biofilm and pathogens which may be present within the internal pipework. By following a strict set of procedures you can rest assured that your hot tub will be fully cleaned internally and ready for use.

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