How To Clean Pool Filter

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How To Clean Pool Filter
How To Clean Pool Filter

How To Clean Pool Filter? Your filter is critical to keeping your pool clean.

So a dirty filter means a dirty pool, but with some simple regular cleaning and these step-by-step instructions, you can keep your filter system flowing smoothly.

So here’s how to clean your cartridge, sand, or D.E pool filter, check it out.

Real quick, before we continue.

It’s totally free and will help keep your pool clean and clear all season long.

How you clean your pool filter depends on the type of filter you have.

So we’ll walk through step-by-step on how to clean each type.

Cartridge filters, sand filters, and diatomaceous earth or DE filters.

how to clean a cartridge pool filter?

This is a straightforward type of filter to clean, with a cartridge filter, you can usually just pull out the cartridge, rinse it off, and put it back.

But sometimes your filter cartridge will need a deeper clean.

So here’s what you need to clean a cartridge filter, a garden hose with a spray nozzle, filter cleaner, a five-gallon bucket, a replacement O-ring if needed, lubricant for your O-ring, a replacement filter cartridge, and your owner’s manual, just in case.

cartridge filter cleaning supplies
cartridge filter cleaning supplies

Depending on how dirty your filter cartridge is, this process could be quick and easy or it could take overnight.

One, turn off your pool pump and filter system

turn off your pool pump and filter system
turn off your pool pump and filter system

two, remove air from the system.

remove air from the system
remove air from the system

Slowly turn the air relief valve, usually located on the top of the filter to remove any excess air from the system.

Three, remove the clamps holding the filter together and remove the top of the filter.

remove clamps,filter top
remove clamps,filter top

If you’re unsure how to open it, check your owner’s manual.

Four, carefully remove the cartridge and inspect it for damage and wear, if you find any cracks or tears or it’s so dirty that cleaning won’t help, it’s time to replace it.

remove and inspect cartridge
remove and inspect cartridge

We also recommend keeping an extra cartridge on hand so you can start your filter system back up while you clean the other cartridge.

Five, it’s time to clean the dirty cartridge.

clean your dirty filter
clean your dirty filter

Use a spray nozzle on your garden hose and spray down the cartridge, making sure to get between the pleats.

We recommend doing this once a week during peak pool season, you can also use a filter cleaner to get off extra grime and dirt.

And once a month, you’ll want to soak the cartridge overnight in a filter cleaner.

Use a five-gallon bucket, submerge the cartridge and then rinse it off the next day.

Six, when you’re cleaning your cartridge, check the O-ring on your filter tank and lightly apply some lubricant.

check o-ring
check o-ring

If it appears worn out, replace it.

Seven, return the cartridge to the filter and secure it in place.

return cartridge to filter
return cartridge to filter

Replace the filter top and close the clamps.

Eight, turn the system back on and open the air relief valve to release any excess air in the system.

turn on release air
turn on release air

Keep the valve open until a steady stream of water sprays from it.

Nine, check the system pressure.

check pressure
check pressure

If the PSI is off, you may have put the filter back together incorrectly.

Now, remember, you’ll want to spray your cartridge filter every week and soak it once a month.

Keep two cartridges on hand and rotate in and out and you’ll likely need to replace the cartridge at least once a year.

you'll want to spray your cartridge filter every week and soak it once a month
you’ll want to spray your cartridge filter every week and soak it once a month

You’ll also want to replace it when it’s worn out and can no longer be cleaned.

How to clean a sand filter?

how to clean a sand filter
how to clean a sand filter

Next, let’s talk about how to clean a sand filter.

You’ll need to clean your sand filter in two ways.

Regular backwashing, which reverses the flow of water in your filter, and a chemical clean, which you’ll want to do at least once a year.

sand filter cleaning supplies
sand filter cleaning supplies

What you’ll need is a backwash hose, sand filter cleaner, and your owner’s manual if you have it.

First up back, backwashing.

how to backwash a sand filter
how to backwash a sand filter

Backwashing sends pool water backward through your filter and removes contaminants that have built up over time.

The dirty water leaves your filter hose and pours out onto the ground.

Now, remember, when you’re backwashing,

you’re gonna lose pool water, and that means you’ll need to refill the pool and test and adjust your chemicals.

So here’s how to backwash your sand filter with a multiport valve.

Attach the backwash hose to the waste or backwash port and turn the filter system off.

attach backwash hose ,turn off system
attach backwash hose ,turn off system

Then turn the multiport valve to backwash and turn the filter system back on.

turn to backwash,turn back on
turn to backwash, turn back on

Let the water run out of the backwash port and through the backwash hose for about a minute or until the water runs clear in your sight glass then turn the filter system off and turn the multiport valve to rinse.

Then turn your filter system back on and rinse the filter for about 30 seconds.

Turn the filter system off again and set the multiport valve back to filter.

If you have a smaller or Intex sand filter, you’ll wanna backwash for one minute and then rinse for one minute.

Repeat this cycle for three rounds to avoid blowing back anything into your pool.

Now, when should you backwash your sand filter?

You’ll need to backwash whenever your sand filter pressure gauge reads 10 PSI over the normal operating level.

It may also be time to clean the filter if you start to notice cloudy pool water or the pressure from your return jets is low.

You’ll also want to change your filter sand every four to five years.

Now, once a year, you’ll want to use sand filter cleaner, and here’s how to add sand filter cleaner to your system.

One, backwash the filter for three to five minutes to remove debris.

backwash 3-5 minutes
backwash 3-5 minutes

Two, turn off the pump and turn the valve to filter.

turn off system,set to filter
turn off system,set to filter

Three, remove the pump’s strainer lid.

remove pump strainer lid
remove pump strainer lid

Four, pool sand filter cleaner into the strainer basket and replace the lid.

pour in sand filter cleaner
pour in sand filter cleaner

Five, turn the pump on for about 15 seconds.

turn pump on for 15 sec
turn pump on for 15 sec

Just long enough to transfer the cleaner from the pump to the filter.

Six, turn off the pump and leave it off for eight hours or overnight.

turn off the pump, leave 8 hrs

Seven, backwash the filter for three to five minutes again to remove dirt and debris dislodged by the filter cleaner and then turn the filter system back on.

backwash again 3-5 min
backwash again 3-5 min

how to clean A D.E filter?

how to clean A D.E filter
how to clean A D.E filter

Lastly, let’s walk through how to clean a D.E pool filter.

Cleaning a D.E filter is like cleaning a cartridge filter and a sand filter combined.

You’ll rinse and then chemically clean it just like a cartridge filter, but you’ll also backwash it just like a sand filter.

So here’s what you need to clean your D.E filter.

D.E filter cleaning supplies
D.E filter cleaning supplies

A backwash hose, a garden hose, D.E filter cleaner, lubricant, a five-gallon bucket, D.E powder.

And as an option, muriatic acid.

You’ll also need safety goggles and acid-resistant gloves if you’re using acid and as always, your owner’s manual will also help to have on hand.

Here’s how to clean a D.E filter quickly and easily without using muriatic acid.

One, backwash the filter for three to five minutes to remove debris.

Two, turn the pump off and open the air relief valve.

Three, remove the drain plug and let the water drain out of the filter tank.

Four, remove the clamps holding the filter together.

If you’re unsure of how to open it check your owner’s manual.

Five, remove the filter manifold and take out all the grids.

Six, rinse out the tank with a garden hose then clean the manifold by using a spray nozzle on your garden hose to spray down the manifold making sure to thoroughly flush the grids of all debris and if the manifold is really dirty use a D.E filter cleaner.

Seven, use a garden hose to rinse the filter grids flushing out all debris, including the D.E powder.

Eight, place the grids back into the filter tank and add D.E powder to your filter.

So how often should you backwash a D.E filter?

You’ll want to backwash when your filters pressure gauge reads 10 PSI over normal, or if your water is cloudy, but regardless of your filter gauge or water, you’ll want to clean your D.E filter at least once a month.

Now here’s how to clean your D.E filter with muriatic acid.

You’ll only need to do this once a year and usually at the end of pool season.

And remember, muriatic acid is just that, and acid.

So protect yourself by using goggles and acid-resistant gloves we recommend wearing long sleeves, pants and closed shoes
to protect your skin.

To clean your D.E filter with muriatic acid you’ll follow the steps from before, when it’s time to clean the manifold use the spray nozzle on your garden hose to spray it down making sure to thoroughly flush the grids of all debris, then dilute them muriatic acid with water in a five-gallon bucket.

Follow the manufacturer’s instructions for dilution ratios.

Place the manifold in the bucket ensuring it’s completely covered with the diluted solution and allow it to soak overnight.

Afterward, use a garden hose to rinse the filter grids.

Finally, place the grids back into the filter tank and add D.E powder to the filter.

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