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Filtrite t400g sand filter

How do i change the filter medium.

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Posted on Jan 02, 2017

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SOURCE: what is best "sand" to use in filter?

It is called diatomaceous earth for pool filters.

Posted on Dec 22, 2014


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When to replace sand filter medium

This is sort of a two-fold answer, as I am not exactly certain if you are referring to replacing the sand filter media itself or the sand.

Most manufacturers will tell you that the sand filter media itself is a permanent media filter. The only reason to throw the filter away would be after the sand calcifies into a solid block of concrete. The industry has spent 40 years telling the professional industry that sand is forever. Sand media is forever and you never have to change it.

However... this is what Hayward Pools is telling their customers:

On average, sand should be replaced every 3-5 years. The jagged edges of the sand wear down and become smooth as the sand ages. When this happens the sand can no longer trap debris particles and dirt can pass through the sand and back into the pool. As the sand ages, it may start to clump and the water flow can form channels in the sand, allowing the debris to pass through.

I have also talked with several others who believe what Hayward is saying, that basically every 3-5 years it should be changed. We have a strong belief in what Hayward says.

Hope that helps.

Bath & Spa Parts Online

Aug 07, 2016 | Pool & Spa

2 Answers

I need to now how clen a filter on my rp2100 digital

rp2100 is a pool heater by raypak it has no filter. you need to clean the filter whatever type it may be. sand/de filters can be taken apart and the medium takin out and replaced, while cartridge can be taken out and sprayed with a hose and put back.

Sep 28, 2015 | Pool & Spa

1 Answer

What is best "sand" to use in filter?

It is called diatomaceous earth for pool filters.

Dec 22, 2014 | Pool & Spa

1 Answer

Can the center pipe be replaced with regular pvc pipe on a hayward sand filter

if the centre pipe can be matched to a pvc pipe size then the next problem to consider is the hole size or slots to allow the water in or out of the tube
filtration works by passing water through a medium ( sand ) and out back to the pool
You may get around the problem by grinding slots or drilling holes in the pvc pipe and securely wrapping fly screen mesh around the outside of the pipe to retain the sand

Jan 19, 2012 | Hayward SAND FILTER, PRO SERIES

1 Answer

I have a Hayward 160T high rate sand filter. How often should the sand be changed? Can you over shock a pool when you first open it? What type of sand and where can I get it?.

Q. I have a Hayward 160T high rate sand filter. How often should the sand be changed? Every 3 - 5 years.

Q. Can you over shock a pool when you first open it? Only in the sense that a liner or some of the equipment will not like ultra-high chlorine levels and depending on the shock used you can mess up pH and Alkalinity...generally you shock with one pound per 10K gallons.

Q. What type of sand and where can I get it? #20 silica sand...some places will call it fine sand. Do not use the coarse or medium coarse sand.


May 29, 2011 | Hayward Pool & Spa

1 Answer

Pentair sm2-pp3 valve, triton II filter. Upon

Lots of sand? You may have a broken lateral in your filter.

To repair, you will have to remove all the sand from the tank to physically inspect.

Might you have changed the sand this year? (top 1/3 needed to be changed every 3 to 5 years normally) If you changed the sand ... did you put water in the filter tank first? If not ... there is a good possibility you broke a lateral (a small pipe with slits in it) when you put the sand into the filter.

It could be that you have too much sand in the filter. Check the owners manual for the clearance - top of sand to top of filter.

Thanks for your interest in

May 14, 2010 | Pool & Spa

1 Answer

I need to change the lateral holder assembly and bottom screen on a Hayward S-200 sand filter. Will I need to remove the variflow valve or will it just come right out?

You will need to remove multiport valve and remove all the sand with a scoop. Not alot of fun. Think about replacing sand with ZeoBrite filter medium when you put it back together

Aug 02, 2009 | Hayward SAND FILTER, PRO SERIES

1 Answer

Replaced sand now filter isnt working

if u used play sand, or any other type of sand thats NOT pool filter sand, that could be the problem. also if there is too much sand or too little sand that could also cause this.

Jun 08, 2009 | Hayward Pro Series 18" Above Ground Pool...

2 Answers

How to change sand in Hayward S-200 Sand filter

hayward S-180 filter takes 150lbs, S-210 takes 200lbs not familur with the S-200. To change sand you have to remove the vari flow valve on top. You can either unplumb the filter and roll it over on its side and try washing the sand out or try scooping it out upright. Whatever you do dont damage the laterals on the bottom of the filter. When refilling with sand you want to make sure all the laterals are undamaged and in the down position. I always fill the filter half full of water to keep the sand from damaging the laterals while re-filling the filter with sand. Make sure you use pool filter sand and not play sand!

Apr 27, 2009 | Hayward SAND FILTER, PRO SERIES

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