How to clean the swimming pool filter sand and backwash
The sand filters are the most affordable and compact ones when you are searching for an excellent pool filter for your swimming pool, either it is an above ground or in-ground pool.
The sand filter operates by passing water of the swimming pool throughout the filter sand. So this sand can get rid of any waste or dirt which goes throughout the filter system and return the water that is clean back to the swimming pool.
With the time, the waste and the dirt can gather in the sand; this can reduce the water flow throughout the sand filter and affecting the pressure to increase than the standard. When this happens, that indicates that it is the time to clean the filter and remove the extra waste. If you want to get rid of excess dirt, you will have to backwash the filter.
When do you need to clean your sand filter?
There is no such rule saying when you need to clean your filter. So the thing you have to do is to examine your pool and the sand filter regularly to decide whether it is the right time for a complete cleaning.
In some cases, if the filter gets disturbed with waste and dirt, the water that flows to the pool gets low by making the pressure to increase on the sand filter. So if the filter has an inlet and an outlet pressure meter, the difference in the pressure will reduce at about three to five psi when it is dirt-free.
If pressure increase between sixteen to twenty psi and that is the time to rinse the sand filter. So if the sand filter of yours has only an inlet pressure meter, then the filter needs to be backwash when pressure increases by eight to ten psi.
Even now, you might feel like you need to rinse it before the filter reaches these levels of pressure. Occasionally, the filter can become dirty making the water somewhat cloudy. If that happens and you are not able to control this cloudiness, the filter of yours might be the one who is guilty.
What causes a sand filter to clog?
The things that you can find in a filter that is operating for a specific time is contaminated such as waste, algae, and leaves. Moreover, there are other various kinds of contaminants that cause the sand filter to clog.
If you are having a pool party, the swimmers that come to your party can add more contaminants to your water and reduce the cycle of the pool cleanings. In case, if you are a new owner of a pool, in some occasions material from the pool like the plaster may gum up with the sand filter which may require you to rinse it often in the start of the life of the pool.
Backwash the filter
The process of backwashing a filter is a quite simple process which you can do by reversing the water flow back throughout the sand filter by the opposite way passing the wastewater.
Switch off your pool pump
To avoid any damage to the valves or plumbing on the filter system, switch off the pump. Moreover, when considering the safety, it would be better if you switch off the power from the circuit breaker.
In most circumstances, the settings of the pool filter valve are likely set on for the regular operations. So you need to set the filter valve to the backwash setting.
Place the waste hose and let it pass the wastewater to the place you want.
Sight glass valve
Switch on the power and make the pool pump work for around two minutes. After that, you need to check the water which is in the sight glass. When this process is going on it needs to change from a cloudy nature to a clear one. When that’s finished, and the water is clear, switch off the pump and make sure you turn off the power.
Change the settings
Change the settings of the filter valve to rinse. When you are finished backwashing, the sand will be slack, and you would have to reset, and the remaining water after backwashing needs clean from the sand filter so that it would not get back to the pool. Switch on the pool pump once again and let the filter work on this settings for about one or two minutes.
Switch off the pool pump and send the valve to the pool filter settings once more. When you have completed it, switch on the pump and make sure that you check the pressure meter to find out whether it has come back to normal.