Quick Answer: What Is The Purpose Of Backwashing?

When should you backwash?

As a general rule, you should be backwashing your pool about once a week or in conjugation with your scheduled maintenance.

Another industry standard is to backwash when your filter’s pressure gauge reads 8-10 PSI (pounds per square inch) over the starting level or “clean” pressure..

What do you mean by backwashing?

In terms of water treatment, including water purification and sewage treatment, backwashing refers to pumping water backwards through the filters media, sometimes including intermittent use of compressed air during the process. Backwashing is a form of preventive maintenance so that the filter media can be reused.

How long do you backwash a pool for?

2 – 3 minutesWatch the pressure gauge for spikes. After the hose fills with water, backwash your sand filter for 2 – 3 minutes, or until water runs clear. Shut off the pump motor and push the T-handle back down into locked position.

What does sand filter remove?

Sand filtration is used for the removal of suspended matter, as well as floating and sinkable particles. The wastewater flows vertically through a fine bed of sand and/or gravel. Particles are removed by way of absorption or physical encapsulation. … Air bubbles are blown into the sand bed to make it swirl around.

How many hours per day should I run my pool filter?

eight hoursThe rule of thumb for pool maintenance is to run your pump for eight hours per day.

Why is backwashing important?

From vacuuming to maintaining proper water chemistry levels, swimming pools require a consistent upkeep. One way to keep your swimming pool’s filter system in working order is through the use of backwashing, or reversing the flow of water through the filter to remove any built-up contaminants.

How does the backwash work?

A backwashing filter will collect any particles that flow through your water. … As water flows through the tank, the backwash system will reverse the flow and drain it out of the filter media. Next, it will use compressed air to suspend any particles in the filter media.

What happens if you don’t backwash your pool?

Backwashing your pool is necessary for keeping a clean and sanitary swimming pool. It reverses the flow in the filter and sends water out through the multiport valve waste line. Not backwashing your pool will result in a continuous rise of sand in the water, and flow will continue to go down.

How much water do you lose when backwashing?

Give it a quick wash with a garden hose. While this process might take 20 to 30 gallons of water, that amount pales in comparison to the couple hundred gallons required with backwashing. For even better water-sparing results, choose an oversized cartridge filter.

Should I backwash after shocking?

Backwash only as needed. Brush the pool vigorously, several times after shocking the pool. Do not use a solar blanket until chlorine and pH level are normal. If chlorine level drops to zero within 24 hours, Repeat the shock treatment.

How do you backwash a well?

How to Back Flush a Shallow Point WellAttach the surge block to a section of PVC pipe. … Insert the PVC pipe into the well casing. … Connect a one-way valve assembly to the PVC pipe. … Raise and lower the surge block 2 to 3 feet at a time to draw water into the connecting tubing.More items…•

Where does the backwash water go?

Use the backwash to water grass or any area on your property that will allow water to percolate into the ground. Backwash pools directly into the private sewer cleanout on your property instead of into the storm gutter.

Does backwash drain the pool?

It is not recommended to drain a swimming pool through the backwash valve. While sucking from the main drain and putting the water down the backwash line will work in some scenarios it puts your pool pump at risk of losing prime and running dry. … It is best to drain and refill a swimming pool as quickly as possible.

How much water do you lose when you backwash a pool?

about 6,300 gallonsThe backwashing of a typical Olympic-sized pool results in the loss of about 6,300 gallons of water per backwashing cycle, according to Recreation Management. As a result, don’t add chemicals to your water until after you’ve backwashed — otherwise, you’re just throwing money down the drain… literally.

Why does sand come out when I backwash?

Your pump may be too large or the sand level too high in the filter. When the filter is backwashing the water flow can cause the sand to rise high enough and overflow into the standpipe, which will allow the sand back into the pool. … Sand coming from the pool filter is the sign of a broken component in the filter.

What is backwashing in filtration process?

When the filter’s pores become clogged, they need to be cleaned. One of the best ways to clean a drinking water system’s filter is to backwash it, meaning reversing the flow and increasing the velocity at which water passes back through the filter. This, in effect, blasts the clogged particles off of the filter.

What is the difference between backwash and rinse?

Backwash runs it through the sand in the opposite direction. Rinse is to clear any dirt out of the clean side of the sand before you start sending it back to the pool.

Can you backwash a pool too much?

Can You Backwash Too Much? If you backwash your pool too much i.e. time duration and/or close frequency then yes you can cause a lot of problems. Some problems that can arise from backwashing your sand pool filter too much are: Loss of water – 500+ litres of water can be lost in each backwashing cycle.

Does backwashing lower water level?

For most pools with a sand or DE filter, the simplest way to lower the water level is to place the multiport valve onto the waste position and roll out the backwash hose. If you have a slide (push-pull) valve, backwash the filter to lower the water level. … Uncap the hose at ground level and let it flow!

Do I need to backwash after vacuuming?

Once you have finished vacuuming, turn off your pump. … If you vacuumed on waste, you will need to turn your filter to the “rinse” setting, turn on the pump and let it run for about 30 seconds, and then turn the pump back off. Make sure to set your filter back to “filter” after you do this.

Is it OK to turn off pool pump at night?

A. Although you may save money by running the pool at night, those extra dollars will almost certainly be paid out in additional chemical and operational costs. The main reason for running the pool pump during the daylight hours is to ensure proper sanitation.