Question about Hayward Pool & Spa

Open Question

Our hayward DE 4820 does not have a backwash valve, is this normal? Do we need to clean grids more often because of this?

Posted by tracy popescu on

Ad

5 Related Answers

Anonymous

  • 1 Answer

SOURCE: Filter grid alignment

First, I don't understand why I could not submit my question when the filter model I have was not listed in the drop-down of models. As I wrote in my question, I had to choose the wrong filter, JUST to get the question submitted. NOTE: This instruction is for Hayward DE filters. Mine is a DE 6000, but I believe the instructions apply to all sizes.

I did solve my question by:

  1. Place the grid manifold upside down on a flat surface. (Holes up, remove the air escape tube first.)
  2. Start with the SMALL filter grid(1 of 8) and insert it in the location hole to the left of the stand pipe inlet. (The LARGE hole in the manifold.)
  3. Continue inserting the remaining 7 filter grids counterclockwise into the location holes, with the tight curl of the grid going toward the center.
  4. The base plate (circular swirl piece) is now worked onto the filter grids, BEING SURE THE "CUT-OUT" FOR THE STANDPIPE ALIGNS WITH LARGE MANIFOLD HOLE, where the standpipe will be.
  5. I found working from the center outward, and giggling the plate as I progressed, the filter grid ends worked their way into place. You'll know it's in place when the plate feels solid and is parallel with the manifold. The filter ends will be in the correct notches and the grids will be symmetrical.
  6. Drop the stainless center rod (with washer and nut in place) through the base plate and into the hole in the center of the manifold.
  7. Holding the assembly together, by pressing the base plate and manifold together (with one finger on the rod), turn filter grid assembly over.
  8. Place washer, and tighten nut, on top of rod. Replace air escape tube and tighten clamp.
  9. Lightly lube the standpipe with Vaseline and place the filter grid assembly into the bottom filter housing.
  10. Lightly coat large "O" ring with Vaseline and place onto top lip of bottom filter housing.
  11. Place filter housing top on top of the filter housing bottom, being sure to create an equal size gap between the 2 pieces.
  12. Place the clamp ring around the seam and tighten both screws until the springs are completely compressed. (There will be a slight gap between the clamp ring halves.)
  13. Fire up the pump, add fresh DE through the skimmer return line to the filter, and enjoy your pool.

Posted on Mar 20, 2009

Ad

Anonymous

  • 3 Answers

SOURCE: multi-valves on hayward sand filter mixed up

Key Cover Assy needs new spider gasket. If it is a newer model the gasket is made into the key cover and it will have to be replaced

Posted on May 02, 2009

Ad

Anonymous

  • 6 Answers

SOURCE: While my hayward filter is on ''filter'' the discharge is leaking

u need to replace the spoke gasket.

Posted on Jun 09, 2009

Delita Foltz

  • 83 Answers

SOURCE: How do I backwash my Pentair Vertical Grid DE filter?

For instructions on backwashing and other trouble shooting, you need an Owner's Manual. You can find one online at the following link:

http://www.pentairpool.com/pdfs/FNSPlusVerticalGridDEFilterOM.pdf

The way you backwash this filter is easy once you get the hang of it!

The first thing you will do is turn off the system, change the valve position to the Backwash position. If you have a Multiport Valve, you will press down on the handle and spin it so that the knotch is pointed to BACKWASH. If you have a Slide Valve, only has two positions, up and down, you turn the handle so that the metal pin is out of the holder and move the handle in the opposite direction. You will need to turn the handle to lock the pin into position.

Once this is done, you will turn on your pump. Pentair recommends that you backwash for 1 minute, then turn off the pump.

If you have the Slide Valve, you will put it back into the FILTER position and then turn the pump back on for 1 minute. If you have the Multiport Valve, you will put it in the RINSE position and then turn the pump back on for 1 minute.

Pentair recommends that you do this cycle a total of three times, backwash/rinse, backwash/rinse, backwash/rinse. AFTER the third time, you will need to open the Air Release Valve at the top of the filter while the pump is OFF and the valve position in back on FILTER. Once this is done, turn on the pump. When you have a steady stream of water coming out of the Air Release Valve, close that up. This way you have no air in the system.

Now, you will mix your DE "Slurry" in a bucket. Depending on your model of filter, you will measure out your DE and mix with water to the consistancy of milk. **IF it is just a backwash, you will only add 80% of the original amount of DE. You only add the total 100% of DE when you completely take the filter apart and clean it out.**

You will slowly pour the slurry into the skimmer that is closest to the pump. This will allow the DE to evenly coat the grids in the filter. Wait about 5 minutes and then check the pressure gauge on the filter. Once the PSI reaches 8 to 10 PSI above this number, it is time to backwash.

Posted on Jul 09, 2009

joespools200

  • 246 Answers

SOURCE: stuck multivalve head handle

that means the filter is sendind sand back to the pool if it does the filter latteral must be replace . not a easy job

Posted on Aug 19, 2009

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What is DE


De is called diatomacious earth. It is a powder made to coat the grids of a de filter in order to trap small particles. Then you backwash the old de out, and replace with appropriate amount depending on your filter size. Backwashing only works for so long before you need to clean the grids and recharge them with fresh de.

May 30, 2016 | Pentair Prowler 720 Pool Cleaner

1 Answer

I have Hayward EC-45 filter leaking DE into pool via return line every start up. Checked all troubleshooting causes (tube tears, bad gasket, cracked tube sheets, loose bolts, o-rings, etc. All looks OK to...


If D.E. is returning to the pool, it's usually because you have a tear in the grids or the backwash valve is not working properly and returning D.E. back to the pool.

Aug 24, 2010 | Hayward 1.5 Hp Northstar High Performance...

2 Answers

Pentair Quad DE system was installed without multiport valve


This is a DE (Diatomaceous earth) IT doesn't have sand and doesn't backwash. You use the bump handle (with pump off and valves closed and vent open and drain dirty water/earth out) Here is a link to the manual for your filter If isn't the exact model they are all on their web site: http://www.haywardnet.com/products/Manuals/pdfs/manual9.pdf

Jul 20, 2010 | Hayward EC-40 DE Pool Filter with pump

1 Answer

I have the Hayward EC-40 Filter, my problem is the DE is getting into the pool. What would cause this?


Broken/torn grid, o-ring bad in the housing by the grid assembly or grids not in manifold properly. Backwash, open the filter, remove and inspect the grids (the plastic bases too).

Jun 05, 2010 | Hayward EC-40 DE Pool Filter with pump

1 Answer

I'm getting DE back in my pool from the 4820 filter


One of two things can cause this. Either the spider gasket is bad or there is a rip or tear in one or more of the filter grids.
P.S.
(the spider gasket is inside the valve you turn to backwash filter)

Mar 25, 2010 | Hayward 48 Sq Ft Pro Grid Vertical Grid De...

2 Answers

How do I backwash my Pentair Vertical Grid DE filter?


For instructions on backwashing and other trouble shooting, you need an Owner's Manual. You can find one online at the following link:

http://www.pentairpool.com/pdfs/FNSPlusVerticalGridDEFilterOM.pdf

The way you backwash this filter is easy once you get the hang of it!

The first thing you will do is turn off the system, change the valve position to the Backwash position. If you have a Multiport Valve, you will press down on the handle and spin it so that the knotch is pointed to BACKWASH. If you have a Slide Valve, only has two positions, up and down, you turn the handle so that the metal pin is out of the holder and move the handle in the opposite direction. You will need to turn the handle to lock the pin into position.

Once this is done, you will turn on your pump. Pentair recommends that you backwash for 1 minute, then turn off the pump.

If you have the Slide Valve, you will put it back into the FILTER position and then turn the pump back on for 1 minute. If you have the Multiport Valve, you will put it in the RINSE position and then turn the pump back on for 1 minute.

Pentair recommends that you do this cycle a total of three times, backwash/rinse, backwash/rinse, backwash/rinse. AFTER the third time, you will need to open the Air Release Valve at the top of the filter while the pump is OFF and the valve position in back on FILTER. Once this is done, turn on the pump. When you have a steady stream of water coming out of the Air Release Valve, close that up. This way you have no air in the system.

Now, you will mix your DE "Slurry" in a bucket. Depending on your model of filter, you will measure out your DE and mix with water to the consistancy of milk. **IF it is just a backwash, you will only add 80% of the original amount of DE. You only add the total 100% of DE when you completely take the filter apart and clean it out.**

You will slowly pour the slurry into the skimmer that is closest to the pump. This will allow the DE to evenly coat the grids in the filter. Wait about 5 minutes and then check the pressure gauge on the filter. Once the PSI reaches 8 to 10 PSI above this number, it is time to backwash.

Jul 09, 2009 | Hayward EC-40 DE Pool Filter with pump

2 Answers

Pent air pool filter


Buddy is this happening, after the pump turns off or during.. Need more info.. type of filter.. Sometimes the sleeves on the neck area of the panel. Where it mates with the manifold slide down, you will have a small opening. Might be from their.. Could be a hole on one of the panels. Do you have a push/pull valve or a multiport valve (to back wash)

Mar 10, 2009 | Pentair "Pentair" In Ground Pool Pump ...

Not finding what you are looking for?
Pool & Spa Logo

Related Topics:

115 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hayward Pool & Spa Experts

john h

Level 3 Expert

23504 Answers

Marvin
Marvin

Level 3 Expert

85239 Answers

Paul Carew

Level 3 Expert

3527 Answers

Are you a Hayward Pool and Spa Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...