?     Asked on 1/27/2012 by Guest

When should I change the sand in my filter?
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A  Answered on 1/27/2012 by InyoPools Product Specialist Patrick P.

You should change the sand in your filter every 5-7 years. You can generally tell that it is time if your pool water is not as clear as it normally is or when you notice the interval between backwashes is shorter. You can use > this guide to walk you through it.
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?     Asked on 3/1/2012 by Guest

How often do I have to replace the sand in my filter? What is normal operating pressure?
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A  Answered on 3/1/2012 by InyoPools Product Specialist Patrick P.

On a "fresh start-up" a filter would operate anywhere between 10-20 psi. As a general rule of thumb you only want to backwash when the pressure increases 8-10 psi. You want to make certain that the pump is being turned off whenever you move the handle on the valve. Once backwashing is complete (3-5 minutes), you can switch to the rinse option to re-settle the sand bed. Sand will typically last 5-7 years. Premature backwashing will wear down the size of the sand which will cause difficulties such as cloudy water and higher operating pressures.
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?     Asked on 5/12/2013 by Guest

How much sand is required for Hayward Sand Filter model # S220T?
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A  Answered on 5/12/2013 by InyoPools Product Specialist Patrick P.

Hayward Sand Filter model # S220T, requires 250 LBs of sand.
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?     Asked on 3/30/2015 by Inyo Visitor

amount of sand for 22 in tank
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A  Answered on 3/30/2015 by InyoPools Product Specialist Lennox H.

250lbs of sand is needed for this filter.
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?     Asked on 5/25/2015 by Bonie Harris

My back wash and water return flow is very weak. Also after back washing there is sand being sent back into pool in return flow.
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A  Answered on 5/25/2015 by InyoPools Product Specialist Patrick P.

Hi Bonie, If you are getting sand back in the pool then I would check out this article on Getting Sand Back in Your Pool as it goes through common items to check when getting sand back in your pool.
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?     Asked on 5/30/2015 by Nick

I have a 24 foot round pool. I need a new housing for my Sand filter. It is a fiberglass tank and has started to leak. The model is a TA35/35D. Can you give me a price. Ty.
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A  Answered on 5/31/2015 by InyoPools Product Specialist Patrick P.

Unfortunately we do not carry the TA35 tank as it costs more than the complete Tagelus filter. The TA35 Tagelus was replaced by the TA40 Tagelus Filter here.
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?     Asked on 6/13/2015 by Inyo Visitor

What size sand filter is required for a 12,000 gallon in-ground pool running on a 1.5 HP pump? Looking at the Hayward S244T. Would you recommend this, or a different Hayward model?
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A  Answered on 6/14/2015 by InyoPools Product Specialist Alex V.

Hello, The S220T would be ideal for your pool size/application.
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?     Asked on 7/8/2015 by Inyo Visitor

Our S220T is about 12 years old and we need to change the sand, it doesn't appear that unions were used in the PVC install, is there anyway to remove the multiport valve to change the sand without cutting through the PVC? I'm wondering if the PVC is screwed into the pipe and can be unscrewed.
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A  Answered on 7/8/2015 by InyoPools Product Specialist Hector F.

Unfortunately it is very unlikely that you can remove the multiport valve from the filter without needing to cut the pvc. The positive out of it though is that this gives you an opportunity to install those unions so this will be very easy in the future.
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?     Asked on 8/10/2015 by Pete

My 15 x 30 by 4.5 (ave) pool has about 47 feet of head. I'm interested in a 2" inlet pump and the Pentair .5 HP seems to be adequate. Can you please double check me (in case I need larger, I have 120V at pump. The only 'feature' I have is the Kreepy Krawler, but I included the hose length in the head calculation. I also want a recommendation on a filter (prefer Pentair also) that is NOT cartridge. Something that requires even less maintenance. I also have a Salt Chlorinator. Thanks! Pete
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A  Answered on 8/11/2015 by InyoPools Product Specialist Patrick P.

Hi Pete, you probably could get by with the 1/2 Horse Power (HP) pump but my concern is having enough suction to power the automatic pool cleaner, for this reason I would suggest the 3/4 HP Pentair Whisperflo Pump. The Whisperflo pump has 2" ports and is classified as an energy efficient pump. If you are looking for easy maintenance then I would go with a sand filter, in my opinion sand filters are the easiest to maintain. If you go with the 3/4 HP pump then I would pair it with the Pentair Sand Dollar SD80 Sand Filter. Both the Whisperflo pump and Sand Dollar filter will work fine a salt system.
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?     Asked on 2/11/2016 by Inyo Visitor

The height of the filter does that include the multiport or not in the measurement. Thx, Mark Ottman
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A  Answered on 2/11/2016 by InyoPools Product Specialist Megan C.

The measurements are taken from the top of the Multiport Valve to the bottom of the Filter. Click here for the Owners Manual. Models S180T, S210T, S220T, S244T PRO-SERIES HIGH-RATE SAND FILTERS
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?     Asked on 3/7/2016 by Inyo Visitor

my old filter is a Hayward Multiport, Can I replace it with a top port
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A  Answered on 3/9/2016 by InyoPools Product Specialist Lennox H.

Hi, You can replace your existing Hayward filter system with this unit, you will need to make sure that this unit will be able to handle the flow rate of your pump output.
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?     Asked on 3/26/2016 by Inyo Visitor

Can the Hayward S220T be used for above ground pools?
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A  Answered on 3/26/2016 by InyoPools Product Specialist Lennox H.

Hi, The S220T can be used on an above ground pool.
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?     Asked on 4/17/2016 by Frank

I have a 30' foot round and 56"deep above ground pool and I am looking to replace current Hayward sand filter S180T and 1 hp pump.Any recommendations ?
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A  Answered on 4/20/2016 by InyoPools Product Specialist Lennox H.

Hi Frank, I would recommend the Hayward S220T with the Hayward Matrix Pump SP1593.
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?     Asked on 5/7/2016 by Neil

Pool is 14 x 32, about 4 ft deep average. We have a Hayward S200 currently, top is cracked so time for a new one. Will a small filter do? Or should we replace with the same filter system?
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A  Answered on 5/9/2016 by InyoPools Product Specialist Lennox H.

Hi Neil, You could replace it with the same S200 or go with this S220T filter. The S220T will be better.
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?     Asked on 6/9/2016 by John

my valve on top of my filter startes to blow water out the top after about 15 min of filtering need help.
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A  Answered on 6/15/2016 by InyoPools Product Specialist Lennox H.

Hi John, You'll need to replace the o-rings located in the valve. You can find replacement parts for that valve via the Hayward Multiport Variflo XL Parts page.
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?     Asked on 6/19/2016 by Tina Williams

We have a S220T and when we vacuum dirty water comes out of the return lines. We have back washed and it still happens.
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A  Answered on 6/24/2016 by InyoPools Product Specialist Lennox H.

Hi Tina, You may need to replace the sand in the filter because it's not allowing the debris to be caught in the filter.
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?     Asked on 7/12/2016 by Inyo Visitor

I have a 2HP Hayward pump which came with our above ground pool which was used when we bought it. WHAT SIZE FILTER WILL WORK WITH THIS PUMP? I know it is a big pump, because it blew out the bottom of my cartridge filter. Want to try a sand filter this time. Thanks in advance for your help.
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A  Answered on 7/18/2016 by InyoPools Product Specialist Lennox H.

Hi, We will need to know the actual pump model, and the pump location so that we can calculate what size filter you'll need.
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?     Asked on 10/13/2016 by Jamie Krauss

Pool supply store said i need the sand grit # for Hayward Model S220T. I can't find that information anywhere??? What is the #????
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A  Answered on 10/13/2016 by InyoPools Product Specialist Megan C.

You can use the #20 Silica Sand for swimming pools or Zeobest Sand Alternative. We unfortunately, do not carry the #20 Silica Sand.
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?     Asked on 4/24/2017 by Dee

Hi y'all! Started my question but I touched something accidently so not sure if it got thru.anyway, I have a Hayward S220T with vari-flo XL valve(Model SP714T1). Last year when back washing sand was in the waste water. Could it be a gasket in the valve? Will be opening it soon and thought it best to take care of the problem now. Many thanks!! Dee
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A  Answered on 4/26/2017 by InyoPools Product Specialist Scott W.

Yes, sounds like a bad spider gasket. That gasket is not sold separately so you can either get part number 4703-20, which is the key, cover, and handle assembly, or part number 4703-23, which is the key assembly with the spider gasket.
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?     Asked on 5/15/2017 by Inyo Visitor

I have a 15'x30'x4'deep above ground oval pool with a pentair optiflo 1.5 hp pump. Can you recommend a sand filter? Is that size pump too big for our pool?
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A  Answered on 5/15/2017 by InyoPools Product Specialist Patrick P.

This 22" Hayward sand filter would be a great fit for the 1.5 HP Pentair Optiflo and this pump and filter would be the correct size for a 15' x 30' x 48" above ground pool.
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?     Asked on 5/16/2017 by dawn zacharakis

I have a 20x40 inground pool.... Hayward S220T filter and last year pool cleaning co. couldnt get pool to stay clear or not green....I replaced pump,sand cleaned liness....now they said maybe I need to buy new filter?? Is just guessing game or could I need to get a new filter and if so...same one since pipes will fit??? HELP
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A  Answered on 5/16/2017 by InyoPools Product Specialist Scott W.

You should not have to replace the filter, if the sand has not been replaced in a while I would recommend changing that out though. Otherwise, it sounds like they are not circulating your water long enough and not keeping enough chlorine in your pool. The water will turn green when there is not enough chlorine in the pool.
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?     Asked on 5/24/2017 by Inyo Visitor

are the flanges on the tanks all the same and can a Hayward valve fit any sand tank
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A  Answered on 5/25/2017 by InyoPools Product Specialist Patrick P.

No the flanges on the tanks are not all the same and the valves only fit the specific tanks they are designed for. If you supply us with your filter or valve information then we can suggest the appropriate counterpart.
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?     Asked on 11/4/2017 by colin turner

only the tank is damaged. is it possible to buy tank alone
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A  Answered on 11/6/2017 by InyoPools Product Specialist Lennox H.

Hi, Colin. The tank only is not available as a separate part. You can purchase the S220T Tank Kit - SX220AA1 which includes the tank, lateral assembly, drain plug and skirt. 
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?     Asked on 2/2/2018 by dominic diciaula

18 by 36 pool is this filter large enough or bigger one and price on 1,5 flex hose for return line
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A  Answered on 2/2/2018 by InyoPools Product Specialist Lennox H.

Hi, Dominic. This filter will work if the flow rate of the pump does not exceed 52 GPM. 
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?     Asked on 2/27/2018 by Dave

I have a 15000 gal IG pool with a 1hp Pentaire Superflo. Would the 220T suffice or should I go bigger ?? TY Dave
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A  Answered on 2/27/2018 by InyoPools Product Specialist Lennox H.

Hi, Dave. The S220T will suffice if the flow rate of your pump does not exceed 52 GPM. Your pump flow rate is the most important factor when sizing a filter. You can check out our How To Size a Pool Filter
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?     Asked on 5/12/2018 by Jean

I have a 16 x 32 inground pool with a Hayward S-220T filter and a Haywood Max-Flo II pump 1-1/2 hp. The return going to the pump has very little suction although the return to the pool seems to be strong. Line to filter has been replaced, so it is not constricted anywhere. Am I using correct pump size or could I need a new pump.
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A  Answered on 5/12/2018 by InyoPools Product Specialist Alex V.

Jean, The pump would be adequate for the pool and filter size. If you have a main drain, I would recommend closing it and drawing all suction from the skimmer. You may have air trapped in the line.
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?     Asked on 6/17/2018 by JOANN DONAHUE

Can this be used for an above ground pool?
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A  Answered on 6/17/2018 by InyoPools Product Specialist Alex V.

Joann, Yes, this can be used for both above and in ground pools. 
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?     Asked on 6/19/2018 by sherrie

we just bought a home with an in ground pool the seller had no info , we have the pump running and the water chemicals are at normal numbers now. The pool had not been covered or cleaned all winter .We have removed all the debris in the pool but now we can not clear up the water its cloudy. We have not been able to see the bottom at all .we have no idea when the sand was replaced in the filter . could this be our problem not being able to get the water cleared up?
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A  Answered on 6/20/2018 by InyoPools Product Specialist Hector F.

This can be the cause of the cloudiness or even any organic material on the floor of the pool. Sand filters sometimes have difficulty filtering that sort of material. If the waste line is set up well for discharging water then maybe consider vacuuming that material to waste to assist in getting that out first allowing the filter to grab only whats in suspense in the water. 
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?     Asked on 6/24/2018 by Inyo Visitor

Have a 2 horse power pump, what size Filter would I need to run a 20,000 gallon inground pool?
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A  Answered on 6/25/2018 by InyoPools Product Specialist Lennox H.

Hi. The filter size will be based on the flow rate of the pump. To determine the flow rate of your pump, you will need to calculate the Total Dynamic Head (TDH), then use steps in our How to Size a Pool Pump for Your In-Ground Pool and How To Size a Pool Filter to determine what size filter you'll need.
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?     Asked on 8/13/2018 by Jeff & Lynn Atkinson

Does this S-220T contain everything pictured? It seems cheaper to replace the entire unit if you have a lot of issues with the one you have. I have this S-220T already and sand is coming through into my pool. My initial assumption based on everything i read is to change the laterals.
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A  Answered on 8/16/2018 by InyoPools Product Specialist Hector F.

Yes, this filter comes with everything in the images on its product page. Usually, the sand returning to the pull is due to bad laterals or spider gasket in the valve. Especially if the pump used with it is the original that came with the system upon install. 
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?     Asked on 4/22/2019 by Amy

Will this filter be able to keep up with a 33 foot round above ground 27,000 gallon pool?
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A  Answered on 4/22/2019 by InyoPools Product Specialist Lennox H.

Hi, Amy. It can, however, the pump's flow rate will be needed in order to confirm.
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?     Asked on 5/31/2019 by Mary Christianson

SLR 1.5 HP Pump Vertical Discharge will this work with the pump I purchased last year
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A  Answered on 10/3/2019 by InyoPools Product Specialist Michelle B.

Hello, Yes, you would be able to adapt these units together.
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?     Asked on 7/2/2019 by John

I have an on ground pool 12'x22'x4' and have a 1.5hp pump and need to replace the sand filter. will the S-220T work ok? Will there be any potential problems with the small pool size?
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A  Answered on 7/11/2019 by InyoPools Product Specialist Joe S.

Hello John, with the S220T you are maxed at a Flow Rating:52 GPM. I would recommend Sand Filter with Top Mount Valve 30 Inch Tank - S310T2. Which has a Flow Rating:98 GPM.
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